Home / 28,166.49-38,854.17-18,083.61

Finding the Fourth Proportional to 28,166.49, 38,854.17 and 18,083.61

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Solution

The fourth proportional to 28,166.49, 38,854.17 and 18,083.61 is: 24,945.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,166.49 : 38,854.17 = 18,083.61 : x
  2. Step 2: Convert to fraction form
    28,166.49/38,854.17 = 18,083.61/x
  3. Step 3: Cross multiply
    28,166.49x = 38,854.17 × 18,083.61
  4. Step 4: Simplify right side
    28,166.49x = 702,623,657.15
  5. Step 5: Solve for x
    x = 702,623,657.15/28,166.49
  6. Step 6: Final answer
    x = 24,945.38

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Half scale
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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.