Home / 28,752.17-39,680.69-16,814.79

Finding the Fourth Proportional to 28,752.17, 39,680.69 and 16,814.79

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Solution

The fourth proportional to 28,752.17, 39,680.69 and 16,814.79 is: 23,205.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,752.17 : 39,680.69 = 16,814.79 : x
  2. Step 2: Convert to fraction form
    28,752.17/39,680.69 = 16,814.79/x
  3. Step 3: Cross multiply
    28,752.17x = 39,680.69 × 16,814.79
  4. Step 4: Simplify right side
    28,752.17x = 667,222,385.33
  5. Step 5: Solve for x
    x = 667,222,385.33/28,752.17
  6. Step 6: Final answer
    x = 23,205.99

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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.