Home / 20,726.54-28,601.84-11,294.90

Finding the Fourth Proportional to 20,726.54, 28,601.84 and 11,294.90

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Solution

The fourth proportional to 20,726.54, 28,601.84 and 11,294.90 is: 15,586.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,726.54 : 28,601.84 = 11,294.90 : x
  2. Step 2: Convert to fraction form
    20,726.54/28,601.84 = 11,294.90/x
  3. Step 3: Cross multiply
    20,726.54x = 28,601.84 × 11,294.90
  4. Step 4: Simplify right side
    20,726.54x = 323,054,922.62
  5. Step 5: Solve for x
    x = 323,054,922.62/20,726.54
  6. Step 6: Final answer
    x = 15,586.53

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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.