Home / 27,981.08-38,612.93-15,234.05

Finding the Fourth Proportional to 27,981.08, 38,612.93 and 15,234.05

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Solution

The fourth proportional to 27,981.08, 38,612.93 and 15,234.05 is: 21,022.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,981.08 : 38,612.93 = 15,234.05 : x
  2. Step 2: Convert to fraction form
    27,981.08/38,612.93 = 15,234.05/x
  3. Step 3: Cross multiply
    27,981.08x = 38,612.93 × 15,234.05
  4. Step 4: Simplify right side
    27,981.08x = 588,231,306.27
  5. Step 5: Solve for x
    x = 588,231,306.27/27,981.08
  6. Step 6: Final answer
    x = 21,022.47

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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.