Home / 31,386.53-47,079.87-7,694.18

Finding the Fourth Proportional to 31,386.53, 47,079.87 and 7,694.18

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Solution

The fourth proportional to 31,386.53, 47,079.87 and 7,694.18 is: 11,541.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,386.53 : 47,079.87 = 7,694.18 : x
  2. Step 2: Convert to fraction form
    31,386.53/47,079.87 = 7,694.18/x
  3. Step 3: Cross multiply
    31,386.53x = 47,079.87 × 7,694.18
  4. Step 4: Simplify right side
    31,386.53x = 362,240,720.29
  5. Step 5: Solve for x
    x = 362,240,720.29/31,386.53
  6. Step 6: Final answer
    x = 11,541.28

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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.