Home / 28,126.29-38,814.31-16,191.95

Finding the Fourth Proportional to 28,126.29, 38,814.31 and 16,191.95

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Solution

The fourth proportional to 28,126.29, 38,814.31 and 16,191.95 is: 22,344.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,126.29 : 38,814.31 = 16,191.95 : x
  2. Step 2: Convert to fraction form
    28,126.29/38,814.31 = 16,191.95/x
  3. Step 3: Cross multiply
    28,126.29x = 38,814.31 × 16,191.95
  4. Step 4: Simplify right side
    28,126.29x = 628,479,366.80
  5. Step 5: Solve for x
    x = 628,479,366.80/28,126.29
  6. Step 6: Final answer
    x = 22,344.91

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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.