Home / 22,002.25-30,350.68-13,040.95

Finding the Fourth Proportional to 22,002.25, 30,350.68 and 13,040.95

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Solution

The fourth proportional to 22,002.25, 30,350.68 and 13,040.95 is: 17,989.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,002.25 : 30,350.68 = 13,040.95 : x
  2. Step 2: Convert to fraction form
    22,002.25/30,350.68 = 13,040.95/x
  3. Step 3: Cross multiply
    22,002.25x = 30,350.68 × 13,040.95
  4. Step 4: Simplify right side
    22,002.25x = 395,801,700.35
  5. Step 5: Solve for x
    x = 395,801,700.35/22,002.25
  6. Step 6: Final answer
    x = 17,989.15

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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.