Home / 22,440.92-30,988.50-21,377.49

Finding the Fourth Proportional to 22,440.92, 30,988.50 and 21,377.49

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Solution

The fourth proportional to 22,440.92, 30,988.50 and 21,377.49 is: 29,520.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,440.92 : 30,988.50 = 21,377.49 : x
  2. Step 2: Convert to fraction form
    22,440.92/30,988.50 = 21,377.49/x
  3. Step 3: Cross multiply
    22,440.92x = 30,988.50 × 21,377.49
  4. Step 4: Simplify right side
    22,440.92x = 662,456,474.08
  5. Step 5: Solve for x
    x = 662,456,474.08/22,440.92
  6. Step 6: Final answer
    x = 29,520.02

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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.