Home / 16,680.92-22,961.20-15,106.28

Finding the Fourth Proportional to 16,680.92, 22,961.20 and 15,106.28

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Solution

The fourth proportional to 16,680.92, 22,961.20 and 15,106.28 is: 20,793.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,680.92 : 22,961.20 = 15,106.28 : x
  2. Step 2: Convert to fraction form
    16,680.92/22,961.20 = 15,106.28/x
  3. Step 3: Cross multiply
    16,680.92x = 22,961.20 × 15,106.28
  4. Step 4: Simplify right side
    16,680.92x = 346,858,316.34
  5. Step 5: Solve for x
    x = 346,858,316.34/16,680.92
  6. Step 6: Final answer
    x = 20,793.72

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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.