Home / 22,091.76-30,500.64-13,713.12

Finding the Fourth Proportional to 22,091.76, 30,500.64 and 13,713.12

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Solution

The fourth proportional to 22,091.76, 30,500.64 and 13,713.12 is: 18,932.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,091.76 : 30,500.64 = 13,713.12 : x
  2. Step 2: Convert to fraction form
    22,091.76/30,500.64 = 13,713.12/x
  3. Step 3: Cross multiply
    22,091.76x = 30,500.64 × 13,713.12
  4. Step 4: Simplify right side
    22,091.76x = 418,258,936.40
  5. Step 5: Solve for x
    x = 418,258,936.40/22,091.76
  6. Step 6: Final answer
    x = 18,932.80

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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.