Home / 27,981.59-38,613.62-15,234.54

Finding the Fourth Proportional to 27,981.59, 38,613.62 and 15,234.54

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Solution

The fourth proportional to 27,981.59, 38,613.62 and 15,234.54 is: 21,023.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,981.59 : 38,613.62 = 15,234.54 : x
  2. Step 2: Convert to fraction form
    27,981.59/38,613.62 = 15,234.54/x
  3. Step 3: Cross multiply
    27,981.59x = 38,613.62 × 15,234.54
  4. Step 4: Simplify right side
    27,981.59x = 588,260,662.26
  5. Step 5: Solve for x
    x = 588,260,662.26/27,981.59
  6. Step 6: Final answer
    x = 21,023.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.