Home / 31,799.16-47,699.66-8,425.60

Finding the Fourth Proportional to 31,799.16, 47,699.66 and 8,425.60

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Solution

The fourth proportional to 31,799.16, 47,699.66 and 8,425.60 is: 12,638.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,799.16 : 47,699.66 = 8,425.60 : x
  2. Step 2: Convert to fraction form
    31,799.16/47,699.66 = 8,425.60/x
  3. Step 3: Cross multiply
    31,799.16x = 47,699.66 × 8,425.60
  4. Step 4: Simplify right side
    31,799.16x = 401,898,157.11
  5. Step 5: Solve for x
    x = 401,898,157.11/31,799.16
  6. Step 6: Final answer
    x = 12,638.64

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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.