Home / 38,545.20-57,755.70-21,855.60

Finding the Fourth Proportional to 38,545.20, 57,755.70 and 21,855.60

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Solution

The fourth proportional to 38,545.20, 57,755.70 and 21,855.60 is: 32,748.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,545.20 : 57,755.70 = 21,855.60 : x
  2. Step 2: Convert to fraction form
    38,545.20/57,755.70 = 21,855.60/x
  3. Step 3: Cross multiply
    38,545.20x = 57,755.70 × 21,855.60
  4. Step 4: Simplify right side
    38,545.20x = 1,262,285,476.92
  5. Step 5: Solve for x
    x = 1,262,285,476.92/38,545.20
  6. Step 6: Final answer
    x = 32,748.19

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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.