Home / 20,844.27-28,765.05-11,284.11

Finding the Fourth Proportional to 20,844.27, 28,765.05 and 11,284.11

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Solution

The fourth proportional to 20,844.27, 28,765.05 and 11,284.11 is: 15,572.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,844.27 : 28,765.05 = 11,284.11 : x
  2. Step 2: Convert to fraction form
    20,844.27/28,765.05 = 11,284.11/x
  3. Step 3: Cross multiply
    20,844.27x = 28,765.05 × 11,284.11
  4. Step 4: Simplify right side
    20,844.27x = 324,587,988.36
  5. Step 5: Solve for x
    x = 324,587,988.36/20,844.27
  6. Step 6: Final answer
    x = 15,572.05

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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.