Home / 42,255.20-63,359.20-17,312.64

Finding the Fourth Proportional to 42,255.20, 63,359.20 and 17,312.64

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Solution

The fourth proportional to 42,255.20, 63,359.20 and 17,312.64 is: 25,959.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,255.20 : 63,359.20 = 17,312.64 : x
  2. Step 2: Convert to fraction form
    42,255.20/63,359.20 = 17,312.64/x
  3. Step 3: Cross multiply
    42,255.20x = 63,359.20 × 17,312.64
  4. Step 4: Simplify right side
    42,255.20x = 1,096,915,020.29
  5. Step 5: Solve for x
    x = 1,096,915,020.29/42,255.20
  6. Step 6: Final answer
    x = 25,959.29

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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.