Home / 36,516.78-54,781.23-12,818.18

Finding the Fourth Proportional to 36,516.78, 54,781.23 and 12,818.18

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Solution

The fourth proportional to 36,516.78, 54,781.23 and 12,818.18 is: 19,229.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,516.78 : 54,781.23 = 12,818.18 : x
  2. Step 2: Convert to fraction form
    36,516.78/54,781.23 = 12,818.18/x
  3. Step 3: Cross multiply
    36,516.78x = 54,781.23 × 12,818.18
  4. Step 4: Simplify right side
    36,516.78x = 702,195,634.72
  5. Step 5: Solve for x
    x = 702,195,634.72/36,516.78
  6. Step 6: Final answer
    x = 19,229.39

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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.