Home / 42,369.09-63,476.17-19,838.43

Finding the Fourth Proportional to 42,369.09, 63,476.17 and 19,838.43

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Solution

The fourth proportional to 42,369.09, 63,476.17 and 19,838.43 is: 29,721.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,369.09 : 63,476.17 = 19,838.43 : x
  2. Step 2: Convert to fraction form
    42,369.09/63,476.17 = 19,838.43/x
  3. Step 3: Cross multiply
    42,369.09x = 63,476.17 × 19,838.43
  4. Step 4: Simplify right side
    42,369.09x = 1,259,267,505.62
  5. Step 5: Solve for x
    x = 1,259,267,505.62/42,369.09
  6. Step 6: Final answer
    x = 29,721.38

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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.