Home / 28,147.19-38,836.71-16,814.88

Finding the Fourth Proportional to 28,147.19, 38,836.71 and 16,814.88

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Solution

The fourth proportional to 28,147.19, 38,836.71 and 16,814.88 is: 23,200.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,147.19 : 38,836.71 = 16,814.88 : x
  2. Step 2: Convert to fraction form
    28,147.19/38,836.71 = 16,814.88/x
  3. Step 3: Cross multiply
    28,147.19x = 38,836.71 × 16,814.88
  4. Step 4: Simplify right side
    28,147.19x = 653,034,618.24
  5. Step 5: Solve for x
    x = 653,034,618.24/28,147.19
  6. Step 6: Final answer
    x = 23,200.71

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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.