Home / 22,200.74-30,607.17-21,512.78

Finding the Fourth Proportional to 22,200.74, 30,607.17 and 21,512.78

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Solution

The fourth proportional to 22,200.74, 30,607.17 and 21,512.78 is: 29,658.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,200.74 : 30,607.17 = 21,512.78 : x
  2. Step 2: Convert to fraction form
    22,200.74/30,607.17 = 21,512.78/x
  3. Step 3: Cross multiply
    22,200.74x = 30,607.17 × 21,512.78
  4. Step 4: Simplify right side
    22,200.74x = 658,445,314.63
  5. Step 5: Solve for x
    x = 658,445,314.63/22,200.74
  6. Step 6: Final answer
    x = 29,658.71

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Double 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.