Home / 28,087.92-38,756.88-16,151.76

Finding the Fourth Proportional to 28,087.92, 38,756.88 and 16,151.76

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Solution

The fourth proportional to 28,087.92, 38,756.88 and 16,151.76 is: 22,286.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,087.92 : 38,756.88 = 16,151.76 : x
  2. Step 2: Convert to fraction form
    28,087.92/38,756.88 = 16,151.76/x
  3. Step 3: Cross multiply
    28,087.92x = 38,756.88 × 16,151.76
  4. Step 4: Simplify right side
    28,087.92x = 625,991,824.11
  5. Step 5: Solve for x
    x = 625,991,824.11/28,087.92
  6. Step 6: Final answer
    x = 22,286.87

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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.