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Finding the Fourth Proportional to 22,001.40, 30,359.03 and 12,442.59

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Solution

The fourth proportional to 22,001.40, 30,359.03 and 12,442.59 is: 17,169.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,001.40 : 30,359.03 = 12,442.59 : x
  2. Step 2: Convert to fraction form
    22,001.40/30,359.03 = 12,442.59/x
  3. Step 3: Cross multiply
    22,001.40x = 30,359.03 × 12,442.59
  4. Step 4: Simplify right side
    22,001.40x = 377,744,900.87
  5. Step 5: Solve for x
    x = 377,744,900.87/22,001.40
  6. Step 6: Final answer
    x = 17,169.13

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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.