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Finding the Fourth Proportional to 22,990.73, 34,494.29 and 13,138.29

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Solution

The fourth proportional to 22,990.73, 34,494.29 and 13,138.29 is: 19,712.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,990.73 : 34,494.29 = 13,138.29 : x
  2. Step 2: Convert to fraction form
    22,990.73/34,494.29 = 13,138.29/x
  3. Step 3: Cross multiply
    22,990.73x = 34,494.29 × 13,138.29
  4. Step 4: Simplify right side
    22,990.73x = 453,195,919.67
  5. Step 5: Solve for x
    x = 453,195,919.67/22,990.73
  6. Step 6: Final answer
    x = 19,712.12

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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.