Home / 27,981.04-38,614.62-15,235

Finding the Fourth Proportional to 27,981.04, 38,614.62 and 15,235

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Solution

The fourth proportional to 27,981.04, 38,614.62 and 15,235 is: 21,024.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,981.04 : 38,614.62 = 15,235 : x
  2. Step 2: Convert to fraction form
    27,981.04/38,614.62 = 15,235/x
  3. Step 3: Cross multiply
    27,981.04x = 38,614.62 × 15,235
  4. Step 4: Simplify right side
    27,981.04x = 588,293,735.70
  5. Step 5: Solve for x
    x = 588,293,735.70/27,981.04
  6. Step 6: Final answer
    x = 21,024.73

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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.