Home / 22,220.70-30,672.28-12,793.02

Finding the Fourth Proportional to 22,220.70, 30,672.28 and 12,793.02

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Solution

The fourth proportional to 22,220.70, 30,672.28 and 12,793.02 is: 17,658.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,220.70 : 30,672.28 = 12,793.02 : x
  2. Step 2: Convert to fraction form
    22,220.70/30,672.28 = 12,793.02/x
  3. Step 3: Cross multiply
    22,220.70x = 30,672.28 × 12,793.02
  4. Step 4: Simplify right side
    22,220.70x = 392,391,091.49
  5. Step 5: Solve for x
    x = 392,391,091.49/22,220.70
  6. Step 6: Final answer
    x = 17,658.81

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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.