Home / 22,398.12-33,684.78-18,898.92

Finding the Fourth Proportional to 22,398.12, 33,684.78 and 18,898.92

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Solution

The fourth proportional to 22,398.12, 33,684.78 and 18,898.92 is: 28,422.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,398.12 : 33,684.78 = 18,898.92 : x
  2. Step 2: Convert to fraction form
    22,398.12/33,684.78 = 18,898.92/x
  3. Step 3: Cross multiply
    22,398.12x = 33,684.78 × 18,898.92
  4. Step 4: Simplify right side
    22,398.12x = 636,605,962.44
  5. Step 5: Solve for x
    x = 636,605,962.44/22,398.12
  6. Step 6: Final answer
    x = 28,422.29

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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.