Home / 31,688.90-47,517.97-15,887.14

Finding the Fourth Proportional to 31,688.90, 47,517.97 and 15,887.14

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Solution

The fourth proportional to 31,688.90, 47,517.97 and 15,887.14 is: 23,823.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,688.90 : 47,517.97 = 15,887.14 : x
  2. Step 2: Convert to fraction form
    31,688.90/47,517.97 = 15,887.14/x
  3. Step 3: Cross multiply
    31,688.90x = 47,517.97 × 15,887.14
  4. Step 4: Simplify right side
    31,688.90x = 754,924,468.50
  5. Step 5: Solve for x
    x = 754,924,468.50/31,688.90
  6. Step 6: Final answer
    x = 23,823.00

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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.