Home / 20,841.60-28,761.30-19,147.14

Finding the Fourth Proportional to 20,841.60, 28,761.30 and 19,147.14

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Solution

The fourth proportional to 20,841.60, 28,761.30 and 19,147.14 is: 26,422.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,841.60 : 28,761.30 = 19,147.14 : x
  2. Step 2: Convert to fraction form
    20,841.60/28,761.30 = 19,147.14/x
  3. Step 3: Cross multiply
    20,841.60x = 28,761.30 × 19,147.14
  4. Step 4: Simplify right side
    20,841.60x = 550,696,637.68
  5. Step 5: Solve for x
    x = 550,696,637.68/20,841.60
  6. Step 6: Final answer
    x = 26,422.95

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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.