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Finding the Fourth Proportional to 38,374.56, 57,455.55 and 19,614.20

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Solution

The fourth proportional to 38,374.56, 57,455.55 and 19,614.20 is: 29,366.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,374.56 : 57,455.55 = 19,614.20 : x
  2. Step 2: Convert to fraction form
    38,374.56/57,455.55 = 19,614.20/x
  3. Step 3: Cross multiply
    38,374.56x = 57,455.55 × 19,614.20
  4. Step 4: Simplify right side
    38,374.56x = 1,126,944,648.81
  5. Step 5: Solve for x
    x = 1,126,944,648.81/38,374.56
  6. Step 6: Final answer
    x = 29,366.97

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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.