Home / 20,193.18-27,865.80-11,240.52

Finding the Fourth Proportional to 20,193.18, 27,865.80 and 11,240.52

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Solution

The fourth proportional to 20,193.18, 27,865.80 and 11,240.52 is: 15,511.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,193.18 : 27,865.80 = 11,240.52 : x
  2. Step 2: Convert to fraction form
    20,193.18/27,865.80 = 11,240.52/x
  3. Step 3: Cross multiply
    20,193.18x = 27,865.80 × 11,240.52
  4. Step 4: Simplify right side
    20,193.18x = 313,226,082.22
  5. Step 5: Solve for x
    x = 313,226,082.22/20,193.18
  6. Step 6: Final answer
    x = 15,511.48

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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.