Home / 20,218.14-27,900.30-11,265.18

Finding the Fourth Proportional to 20,218.14, 27,900.30 and 11,265.18

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Solution

The fourth proportional to 20,218.14, 27,900.30 and 11,265.18 is: 15,545.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,218.14 : 27,900.30 = 11,265.18 : x
  2. Step 2: Convert to fraction form
    20,218.14/27,900.30 = 11,265.18/x
  3. Step 3: Cross multiply
    20,218.14x = 27,900.30 × 11,265.18
  4. Step 4: Simplify right side
    20,218.14x = 314,301,901.55
  5. Step 5: Solve for x
    x = 314,301,901.55/20,218.14
  6. Step 6: Final answer
    x = 15,545.54

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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.