Home / 28,156.08-38,853.72-16,517.76

Finding the Fourth Proportional to 28,156.08, 38,853.72 and 16,517.76

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Solution

The fourth proportional to 28,156.08, 38,853.72 and 16,517.76 is: 22,793.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,156.08 : 38,853.72 = 16,517.76 : x
  2. Step 2: Convert to fraction form
    28,156.08/38,853.72 = 16,517.76/x
  3. Step 3: Cross multiply
    28,156.08x = 38,853.72 × 16,517.76
  4. Step 4: Simplify right side
    28,156.08x = 641,776,422.07
  5. Step 5: Solve for x
    x = 641,776,422.07/28,156.08
  6. Step 6: Final answer
    x = 22,793.53

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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.