Home / 48,479.31-72,747.06-20,397.15

Finding the Fourth Proportional to 48,479.31, 72,747.06 and 20,397.15

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Solution

The fourth proportional to 48,479.31, 72,747.06 and 20,397.15 is: 30,607.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,479.31 : 72,747.06 = 20,397.15 : x
  2. Step 2: Convert to fraction form
    48,479.31/72,747.06 = 20,397.15/x
  3. Step 3: Cross multiply
    48,479.31x = 72,747.06 × 20,397.15
  4. Step 4: Simplify right side
    48,479.31x = 1,483,832,694.88
  5. Step 5: Solve for x
    x = 1,483,832,694.88/48,479.31
  6. Step 6: Final answer
    x = 30,607.55

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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.