Home / 16,489.69-22,759.20-15,161.29

Finding the Fourth Proportional to 16,489.69, 22,759.20 and 15,161.29

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Solution

The fourth proportional to 16,489.69, 22,759.20 and 15,161.29 is: 20,925.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,489.69 : 22,759.20 = 15,161.29 : x
  2. Step 2: Convert to fraction form
    16,489.69/22,759.20 = 15,161.29/x
  3. Step 3: Cross multiply
    16,489.69x = 22,759.20 × 15,161.29
  4. Step 4: Simplify right side
    16,489.69x = 345,058,717.57
  5. Step 5: Solve for x
    x = 345,058,717.57/16,489.69
  6. Step 6: Final answer
    x = 20,925.73

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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.