Home / 20,251.40-27,959.94-12,708.08

Finding the Fourth Proportional to 20,251.40, 27,959.94 and 12,708.08

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Solution

The fourth proportional to 20,251.40, 27,959.94 and 12,708.08 is: 17,545.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,251.40 : 27,959.94 = 12,708.08 : x
  2. Step 2: Convert to fraction form
    20,251.40/27,959.94 = 12,708.08/x
  3. Step 3: Cross multiply
    20,251.40x = 27,959.94 × 12,708.08
  4. Step 4: Simplify right side
    20,251.40x = 355,317,154.32
  5. Step 5: Solve for x
    x = 355,317,154.32/20,251.40
  6. Step 6: Final answer
    x = 17,545.31

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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.