Home / 20,205.32-27,882.36-11,707.02

Finding the Fourth Proportional to 20,205.32, 27,882.36 and 11,707.02

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Solution

The fourth proportional to 20,205.32, 27,882.36 and 11,707.02 is: 16,155.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,205.32 : 27,882.36 = 11,707.02 : x
  2. Step 2: Convert to fraction form
    20,205.32/27,882.36 = 11,707.02/x
  3. Step 3: Cross multiply
    20,205.32x = 27,882.36 × 11,707.02
  4. Step 4: Simplify right side
    20,205.32x = 326,419,346.17
  5. Step 5: Solve for x
    x = 326,419,346.17/20,205.32
  6. Step 6: Final answer
    x = 16,155.12

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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.