Home / 20,221.16-27,907.46-11,269.48

Finding the Fourth Proportional to 20,221.16, 27,907.46 and 11,269.48

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Solution

The fourth proportional to 20,221.16, 27,907.46 and 11,269.48 is: 15,553.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,221.16 : 27,907.46 = 11,269.48 : x
  2. Step 2: Convert to fraction form
    20,221.16/27,907.46 = 11,269.48/x
  3. Step 3: Cross multiply
    20,221.16x = 27,907.46 × 11,269.48
  4. Step 4: Simplify right side
    20,221.16x = 314,502,562.32
  5. Step 5: Solve for x
    x = 314,502,562.32/20,221.16
  6. Step 6: Final answer
    x = 15,553.14

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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.