Home / 20,726.12-28,601.88-11,294.84

Finding the Fourth Proportional to 20,726.12, 28,601.88 and 11,294.84

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Solution

The fourth proportional to 20,726.12, 28,601.88 and 11,294.84 is: 15,586.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,726.12 : 28,601.88 = 11,294.84 : x
  2. Step 2: Convert to fraction form
    20,726.12/28,601.88 = 11,294.84/x
  3. Step 3: Cross multiply
    20,726.12x = 28,601.88 × 11,294.84
  4. Step 4: Simplify right side
    20,726.12x = 323,053,658.30
  5. Step 5: Solve for x
    x = 323,053,658.30/20,726.12
  6. Step 6: Final answer
    x = 15,586.79

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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.