Home / 38,612.55-57,906.48-12,311.13

Finding the Fourth Proportional to 38,612.55, 57,906.48 and 12,311.13

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Solution

The fourth proportional to 38,612.55, 57,906.48 and 12,311.13 is: 18,462.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,612.55 : 57,906.48 = 12,311.13 : x
  2. Step 2: Convert to fraction form
    38,612.55/57,906.48 = 12,311.13/x
  3. Step 3: Cross multiply
    38,612.55x = 57,906.48 × 12,311.13
  4. Step 4: Simplify right side
    38,612.55x = 712,894,203.12
  5. Step 5: Solve for x
    x = 712,894,203.12/38,612.55
  6. Step 6: Final answer
    x = 18,462.76

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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.