Home / 38,581.53-57,876.54-12,280.11

Finding the Fourth Proportional to 38,581.53, 57,876.54 and 12,280.11

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Solution

The fourth proportional to 38,581.53, 57,876.54 and 12,280.11 is: 18,421.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,581.53 : 57,876.54 = 12,280.11 : x
  2. Step 2: Convert to fraction form
    38,581.53/57,876.54 = 12,280.11/x
  3. Step 3: Cross multiply
    38,581.53x = 57,876.54 × 12,280.11
  4. Step 4: Simplify right side
    38,581.53x = 710,730,277.62
  5. Step 5: Solve for x
    x = 710,730,277.62/38,581.53
  6. Step 6: Final answer
    x = 18,421.52

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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.