Home / 42,371.67-63,565.62-21,316.26

Finding the Fourth Proportional to 42,371.67, 63,565.62 and 21,316.26

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Solution

The fourth proportional to 42,371.67, 63,565.62 and 21,316.26 is: 31,978.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,371.67 : 63,565.62 = 21,316.26 : x
  2. Step 2: Convert to fraction form
    42,371.67/63,565.62 = 21,316.26/x
  3. Step 3: Cross multiply
    42,371.67x = 63,565.62 × 21,316.26
  4. Step 4: Simplify right side
    42,371.67x = 1,354,981,282.98
  5. Step 5: Solve for x
    x = 1,354,981,282.98/42,371.67
  6. Step 6: Final answer
    x = 31,978.47

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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.