Home / 17,981.49-26,899.97-15,542.49

Finding the Fourth Proportional to 17,981.49, 26,899.97 and 15,542.49

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Solution

The fourth proportional to 17,981.49, 26,899.97 and 15,542.49 is: 23,251.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,981.49 : 26,899.97 = 15,542.49 : x
  2. Step 2: Convert to fraction form
    17,981.49/26,899.97 = 15,542.49/x
  3. Step 3: Cross multiply
    17,981.49x = 26,899.97 × 15,542.49
  4. Step 4: Simplify right side
    17,981.49x = 418,092,437.01
  5. Step 5: Solve for x
    x = 418,092,437.01/17,981.49
  6. Step 6: Final answer
    x = 23,251.27

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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.