Home / 42,502.08-63,753-20,247.96

Finding the Fourth Proportional to 42,502.08, 63,753 and 20,247.96

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Solution

The fourth proportional to 42,502.08, 63,753 and 20,247.96 is: 30,371.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,502.08 : 63,753 = 20,247.96 : x
  2. Step 2: Convert to fraction form
    42,502.08/63,753 = 20,247.96/x
  3. Step 3: Cross multiply
    42,502.08x = 63,753 × 20,247.96
  4. Step 4: Simplify right side
    42,502.08x = 1,290,868,193.88
  5. Step 5: Solve for x
    x = 1,290,868,193.88/42,502.08
  6. Step 6: Final answer
    x = 30,371.88

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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.