Home / 28,691.39-39,597.81-16,118.57

Finding the Fourth Proportional to 28,691.39, 39,597.81 and 16,118.57

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Solution

The fourth proportional to 28,691.39, 39,597.81 and 16,118.57 is: 22,245.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,691.39 : 39,597.81 = 16,118.57 : x
  2. Step 2: Convert to fraction form
    28,691.39/39,597.81 = 16,118.57/x
  3. Step 3: Cross multiply
    28,691.39x = 39,597.81 × 16,118.57
  4. Step 4: Simplify right side
    28,691.39x = 638,259,821.13
  5. Step 5: Solve for x
    x = 638,259,821.13/28,691.39
  6. Step 6: Final answer
    x = 22,245.70

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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.