Home / 38,781.96-58,135.92-12,468.25

Finding the Fourth Proportional to 38,781.96, 58,135.92 and 12,468.25

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Solution

The fourth proportional to 38,781.96, 58,135.92 and 12,468.25 is: 18,690.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,781.96 : 58,135.92 = 12,468.25 : x
  2. Step 2: Convert to fraction form
    38,781.96/58,135.92 = 12,468.25/x
  3. Step 3: Cross multiply
    38,781.96x = 58,135.92 × 12,468.25
  4. Step 4: Simplify right side
    38,781.96x = 724,853,184.54
  5. Step 5: Solve for x
    x = 724,853,184.54/38,781.96
  6. Step 6: Final answer
    x = 18,690.47

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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.