Home / 42,372.12-63,489.06-21,567

Finding the Fourth Proportional to 42,372.12, 63,489.06 and 21,567

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Solution

The fourth proportional to 42,372.12, 63,489.06 and 21,567 is: 32,315.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,372.12 : 63,489.06 = 21,567 : x
  2. Step 2: Convert to fraction form
    42,372.12/63,489.06 = 21,567/x
  3. Step 3: Cross multiply
    42,372.12x = 63,489.06 × 21,567
  4. Step 4: Simplify right side
    42,372.12x = 1,369,268,557.02
  5. Step 5: Solve for x
    x = 1,369,268,557.02/42,372.12
  6. Step 6: Final answer
    x = 32,315.32

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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.