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Finding the Fourth Proportional to 22,981, 34,443.80 and 11,881.70

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Solution

The fourth proportional to 22,981, 34,443.80 and 11,881.70 is: 17,808.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,981 : 34,443.80 = 11,881.70 : x
  2. Step 2: Convert to fraction form
    22,981/34,443.80 = 11,881.70/x
  3. Step 3: Cross multiply
    22,981x = 34,443.80 × 11,881.70
  4. Step 4: Simplify right side
    22,981x = 409,250,898.46
  5. Step 5: Solve for x
    x = 409,250,898.46/22,981
  6. Step 6: Final answer
    x = 17,808.23

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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.