Home / 22,122.52-30,532.24-13,169.79

Finding the Fourth Proportional to 22,122.52, 30,532.24 and 13,169.79

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Solution

The fourth proportional to 22,122.52, 30,532.24 and 13,169.79 is: 18,176.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,122.52 : 30,532.24 = 13,169.79 : x
  2. Step 2: Convert to fraction form
    22,122.52/30,532.24 = 13,169.79/x
  3. Step 3: Cross multiply
    22,122.52x = 30,532.24 × 13,169.79
  4. Step 4: Simplify right side
    22,122.52x = 402,103,205.49
  5. Step 5: Solve for x
    x = 402,103,205.49/22,122.52
  6. Step 6: Final answer
    x = 18,176.20

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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.