Home / 38,677.10-57,981.90-15,000.80

Finding the Fourth Proportional to 38,677.10, 57,981.90 and 15,000.80

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Solution

The fourth proportional to 38,677.10, 57,981.90 and 15,000.80 is: 22,488.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,677.10 : 57,981.90 = 15,000.80 : x
  2. Step 2: Convert to fraction form
    38,677.10/57,981.90 = 15,000.80/x
  3. Step 3: Cross multiply
    38,677.10x = 57,981.90 × 15,000.80
  4. Step 4: Simplify right side
    38,677.10x = 869,774,885.52
  5. Step 5: Solve for x
    x = 869,774,885.52/38,677.10
  6. Step 6: Final answer
    x = 22,488.11

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1.5x scale

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.