Home / 42,627.76-63,934.40-19,248.72

Finding the Fourth Proportional to 42,627.76, 63,934.40 and 19,248.72

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Solution

The fourth proportional to 42,627.76, 63,934.40 and 19,248.72 is: 28,869.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,627.76 : 63,934.40 = 19,248.72 : x
  2. Step 2: Convert to fraction form
    42,627.76/63,934.40 = 19,248.72/x
  3. Step 3: Cross multiply
    42,627.76x = 63,934.40 × 19,248.72
  4. Step 4: Simplify right side
    42,627.76x = 1,230,655,363.97
  5. Step 5: Solve for x
    x = 1,230,655,363.97/42,627.76
  6. Step 6: Final answer
    x = 28,869.81

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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.