Home / 31,386.02-47,079.11-7,693.67

Finding the Fourth Proportional to 31,386.02, 47,079.11 and 7,693.67

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Solution

The fourth proportional to 31,386.02, 47,079.11 and 7,693.67 is: 11,540.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,386.02 : 47,079.11 = 7,693.67 : x
  2. Step 2: Convert to fraction form
    31,386.02/47,079.11 = 7,693.67/x
  3. Step 3: Cross multiply
    31,386.02x = 47,079.11 × 7,693.67
  4. Step 4: Simplify right side
    31,386.02x = 362,211,273.17
  5. Step 5: Solve for x
    x = 362,211,273.17/31,386.02
  6. Step 6: Final answer
    x = 11,540.53

Related Problems

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Half scale
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Double scale
Find fourth proportional to 31,387.02, 47,080.61 and 7,694.67
Similar ratio
Find fourth proportional to 47,079.03, 70,618.67 and 11,540.51
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.