Home / 29,375.92-40,521.90-21,408.76

Finding the Fourth Proportional to 29,375.92, 40,521.90 and 21,408.76

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Solution

The fourth proportional to 29,375.92, 40,521.90 and 21,408.76 is: 29,531.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,375.92 : 40,521.90 = 21,408.76 : x
  2. Step 2: Convert to fraction form
    29,375.92/40,521.90 = 21,408.76/x
  3. Step 3: Cross multiply
    29,375.92x = 40,521.90 × 21,408.76
  4. Step 4: Simplify right side
    29,375.92x = 867,523,631.84
  5. Step 5: Solve for x
    x = 867,523,631.84/29,375.92
  6. Step 6: Final answer
    x = 29,531.79

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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.