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Finding the Fourth Proportional to 36,514.80, 54,793.80 and 13,138.20

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Solution

The fourth proportional to 36,514.80, 54,793.80 and 13,138.20 is: 19,715.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,514.80 : 54,793.80 = 13,138.20 : x
  2. Step 2: Convert to fraction form
    36,514.80/54,793.80 = 13,138.20/x
  3. Step 3: Cross multiply
    36,514.80x = 54,793.80 × 13,138.20
  4. Step 4: Simplify right side
    36,514.80x = 719,891,903.16
  5. Step 5: Solve for x
    x = 719,891,903.16/36,514.80
  6. Step 6: Final answer
    x = 19,715.07

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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.