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Finding the Fourth Proportional to 38,437.60, 57,670.80 and 15,080.80

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Solution

The fourth proportional to 38,437.60, 57,670.80 and 15,080.80 is: 22,626.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,437.60 : 57,670.80 = 15,080.80 : x
  2. Step 2: Convert to fraction form
    38,437.60/57,670.80 = 15,080.80/x
  3. Step 3: Cross multiply
    38,437.60x = 57,670.80 × 15,080.80
  4. Step 4: Simplify right side
    38,437.60x = 869,721,800.64
  5. Step 5: Solve for x
    x = 869,721,800.64/38,437.60
  6. Step 6: Final answer
    x = 22,626.85

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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.