Home / 27,726.27-38,266.21-15,790.71

Finding the Fourth Proportional to 27,726.27, 38,266.21 and 15,790.71

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Solution

The fourth proportional to 27,726.27, 38,266.21 and 15,790.71 is: 21,793.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,726.27 : 38,266.21 = 15,790.71 : x
  2. Step 2: Convert to fraction form
    27,726.27/38,266.21 = 15,790.71/x
  3. Step 3: Cross multiply
    27,726.27x = 38,266.21 × 15,790.71
  4. Step 4: Simplify right side
    27,726.27x = 604,250,624.91
  5. Step 5: Solve for x
    x = 604,250,624.91/27,726.27
  6. Step 6: Final answer
    x = 21,793.43

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Half scale
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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.