Home / 31,159.28-42,999.24-17,013.44

Finding the Fourth Proportional to 31,159.28, 42,999.24 and 17,013.44

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Solution

The fourth proportional to 31,159.28, 42,999.24 and 17,013.44 is: 23,478.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,159.28 : 42,999.24 = 17,013.44 : x
  2. Step 2: Convert to fraction form
    31,159.28/42,999.24 = 17,013.44/x
  3. Step 3: Cross multiply
    31,159.28x = 42,999.24 × 17,013.44
  4. Step 4: Simplify right side
    31,159.28x = 731,564,989.79
  5. Step 5: Solve for x
    x = 731,564,989.79/31,159.28
  6. Step 6: Final answer
    x = 23,478.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.