Home / 39,402.47-54,375.30-21,497.46

Finding the Fourth Proportional to 39,402.47, 54,375.30 and 21,497.46

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Solution

The fourth proportional to 39,402.47, 54,375.30 and 21,497.46 is: 29,666.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,402.47 : 54,375.30 = 21,497.46 : x
  2. Step 2: Convert to fraction form
    39,402.47/54,375.30 = 21,497.46/x
  3. Step 3: Cross multiply
    39,402.47x = 54,375.30 × 21,497.46
  4. Step 4: Simplify right side
    39,402.47x = 1,168,930,836.74
  5. Step 5: Solve for x
    x = 1,168,930,836.74/39,402.47
  6. Step 6: Final answer
    x = 29,666.44

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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.