Home / 20,218.92-27,901.86-11,267.42

Finding the Fourth Proportional to 20,218.92, 27,901.86 and 11,267.42

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Solution

The fourth proportional to 20,218.92, 27,901.86 and 11,267.42 is: 15,548.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,218.92 : 27,901.86 = 11,267.42 : x
  2. Step 2: Convert to fraction form
    20,218.92/27,901.86 = 11,267.42/x
  3. Step 3: Cross multiply
    20,218.92x = 27,901.86 × 11,267.42
  4. Step 4: Simplify right side
    20,218.92x = 314,381,835.89
  5. Step 5: Solve for x
    x = 314,381,835.89/20,218.92
  6. Step 6: Final answer
    x = 15,548.89

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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.