Home / 27,864.42-38,452.89-15,117.61

Finding the Fourth Proportional to 27,864.42, 38,452.89 and 15,117.61

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Solution

The fourth proportional to 27,864.42, 38,452.89 and 15,117.61 is: 20,862.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,864.42 : 38,452.89 = 15,117.61 : x
  2. Step 2: Convert to fraction form
    27,864.42/38,452.89 = 15,117.61/x
  3. Step 3: Cross multiply
    27,864.42x = 38,452.89 × 15,117.61
  4. Step 4: Simplify right side
    27,864.42x = 581,315,718.80
  5. Step 5: Solve for x
    x = 581,315,718.80/27,864.42
  6. Step 6: Final answer
    x = 20,862.29

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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.