Home / 20,064.52-27,689.92-11,112.02

Finding the Fourth Proportional to 20,064.52, 27,689.92 and 11,112.02

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Solution

The fourth proportional to 20,064.52, 27,689.92 and 11,112.02 is: 15,335.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,064.52 : 27,689.92 = 11,112.02 : x
  2. Step 2: Convert to fraction form
    20,064.52/27,689.92 = 11,112.02/x
  3. Step 3: Cross multiply
    20,064.52x = 27,689.92 × 11,112.02
  4. Step 4: Simplify right side
    20,064.52x = 307,690,944.84
  5. Step 5: Solve for x
    x = 307,690,944.84/20,064.52
  6. Step 6: Final answer
    x = 15,335.08

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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.