Home / 22,920.89-34,373.13-12,398.68

Finding the Fourth Proportional to 22,920.89, 34,373.13 and 12,398.68

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Solution

The fourth proportional to 22,920.89, 34,373.13 and 12,398.68 is: 18,593.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,920.89 : 34,373.13 = 12,398.68 : x
  2. Step 2: Convert to fraction form
    22,920.89/34,373.13 = 12,398.68/x
  3. Step 3: Cross multiply
    22,920.89x = 34,373.13 × 12,398.68
  4. Step 4: Simplify right side
    22,920.89x = 426,181,435.94
  5. Step 5: Solve for x
    x = 426,181,435.94/22,920.89
  6. Step 6: Final answer
    x = 18,593.59

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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.