Home / 27,864.28-38,451.18-15,288.04

Finding the Fourth Proportional to 27,864.28, 38,451.18 and 15,288.04

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Solution

The fourth proportional to 27,864.28, 38,451.18 and 15,288.04 is: 21,096.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,864.28 : 38,451.18 = 15,288.04 : x
  2. Step 2: Convert to fraction form
    27,864.28/38,451.18 = 15,288.04/x
  3. Step 3: Cross multiply
    27,864.28x = 38,451.18 × 15,288.04
  4. Step 4: Simplify right side
    27,864.28x = 587,843,177.89
  5. Step 5: Solve for x
    x = 587,843,177.89/27,864.28
  6. Step 6: Final answer
    x = 21,096.66

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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.