Home / 28,180.28-38,888.20-16,242.88

Finding the Fourth Proportional to 28,180.28, 38,888.20 and 16,242.88

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Solution

The fourth proportional to 28,180.28, 38,888.20 and 16,242.88 is: 22,414.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,180.28 : 38,888.20 = 16,242.88 : x
  2. Step 2: Convert to fraction form
    28,180.28/38,888.20 = 16,242.88/x
  3. Step 3: Cross multiply
    28,180.28x = 38,888.20 × 16,242.88
  4. Step 4: Simplify right side
    28,180.28x = 631,656,366.02
  5. Step 5: Solve for x
    x = 631,656,366.02/28,180.28
  6. Step 6: Final answer
    x = 22,414.84

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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.