Home / 38,279.76-57,436.08-13,306.20

Finding the Fourth Proportional to 38,279.76, 57,436.08 and 13,306.20

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Solution

The fourth proportional to 38,279.76, 57,436.08 and 13,306.20 is: 19,965.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,279.76 : 57,436.08 = 13,306.20 : x
  2. Step 2: Convert to fraction form
    38,279.76/57,436.08 = 13,306.20/x
  3. Step 3: Cross multiply
    38,279.76x = 57,436.08 × 13,306.20
  4. Step 4: Simplify right side
    38,279.76x = 764,255,967.70
  5. Step 5: Solve for x
    x = 764,255,967.70/38,279.76
  6. Step 6: Final answer
    x = 19,965.01

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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.