Home / 22,121.70-33,182.55-15,123.30

Finding the Fourth Proportional to 22,121.70, 33,182.55 and 15,123.30

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Solution

The fourth proportional to 22,121.70, 33,182.55 and 15,123.30 is: 22,684.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,121.70 : 33,182.55 = 15,123.30 : x
  2. Step 2: Convert to fraction form
    22,121.70/33,182.55 = 15,123.30/x
  3. Step 3: Cross multiply
    22,121.70x = 33,182.55 × 15,123.30
  4. Step 4: Simplify right side
    22,121.70x = 501,829,658.42
  5. Step 5: Solve for x
    x = 501,829,658.42/22,121.70
  6. Step 6: Final answer
    x = 22,684.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.