Home / 28,691.06-39,597.38-16,115.81

Finding the Fourth Proportional to 28,691.06, 39,597.38 and 16,115.81

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Solution

The fourth proportional to 28,691.06, 39,597.38 and 16,115.81 is: 22,241.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,691.06 : 39,597.38 = 16,115.81 : x
  2. Step 2: Convert to fraction form
    28,691.06/39,597.38 = 16,115.81/x
  3. Step 3: Cross multiply
    28,691.06x = 39,597.38 × 16,115.81
  4. Step 4: Simplify right side
    28,691.06x = 638,143,852.58
  5. Step 5: Solve for x
    x = 638,143,852.58/28,691.06
  6. Step 6: Final answer
    x = 22,241.91

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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.