Home / 19,841.57-27,382.58-13,115.53

Finding the Fourth Proportional to 19,841.57, 27,382.58 and 13,115.53

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Solution

The fourth proportional to 19,841.57, 27,382.58 and 13,115.53 is: 18,100.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,841.57 : 27,382.58 = 13,115.53 : x
  2. Step 2: Convert to fraction form
    19,841.57/27,382.58 = 13,115.53/x
  3. Step 3: Cross multiply
    19,841.57x = 27,382.58 × 13,115.53
  4. Step 4: Simplify right side
    19,841.57x = 359,137,049.47
  5. Step 5: Solve for x
    x = 359,137,049.47/19,841.57
  6. Step 6: Final answer
    x = 18,100.23

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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.