Home / 22,581.82-31,132.11-15,028.48

Finding the Fourth Proportional to 22,581.82, 31,132.11 and 15,028.48

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Solution

The fourth proportional to 22,581.82, 31,132.11 and 15,028.48 is: 20,718.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,581.82 : 31,132.11 = 15,028.48 : x
  2. Step 2: Convert to fraction form
    22,581.82/31,132.11 = 15,028.48/x
  3. Step 3: Cross multiply
    22,581.82x = 31,132.11 × 15,028.48
  4. Step 4: Simplify right side
    22,581.82x = 467,868,292.49
  5. Step 5: Solve for x
    x = 467,868,292.49/22,581.82
  6. Step 6: Final answer
    x = 20,718.80

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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.