Home / 28,900.17-39,884.09-16,959.15

Finding the Fourth Proportional to 28,900.17, 39,884.09 and 16,959.15

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Solution

The fourth proportional to 28,900.17, 39,884.09 and 16,959.15 is: 23,404.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,900.17 : 39,884.09 = 16,959.15 : x
  2. Step 2: Convert to fraction form
    28,900.17/39,884.09 = 16,959.15/x
  3. Step 3: Cross multiply
    28,900.17x = 39,884.09 × 16,959.15
  4. Step 4: Simplify right side
    28,900.17x = 676,400,180.13
  5. Step 5: Solve for x
    x = 676,400,180.13/28,900.17
  6. Step 6: Final answer
    x = 23,404.71

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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.