Home / 39,617.24-54,670.92-21,711.86

Finding the Fourth Proportional to 39,617.24, 54,670.92 and 21,711.86

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Solution

The fourth proportional to 39,617.24, 54,670.92 and 21,711.86 is: 29,961.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,617.24 : 54,670.92 = 21,711.86 : x
  2. Step 2: Convert to fraction form
    39,617.24/54,670.92 = 21,711.86/x
  3. Step 3: Cross multiply
    39,617.24x = 54,670.92 × 21,711.86
  4. Step 4: Simplify right side
    39,617.24x = 1,187,007,361.11
  5. Step 5: Solve for x
    x = 1,187,007,361.11/39,617.24
  6. Step 6: Final answer
    x = 29,961.89

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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.