Home / 20,191.50-27,864.27-11,359.50

Finding the Fourth Proportional to 20,191.50, 27,864.27 and 11,359.50

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Solution

The fourth proportional to 20,191.50, 27,864.27 and 11,359.50 is: 15,676.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,191.50 : 27,864.27 = 11,359.50 : x
  2. Step 2: Convert to fraction form
    20,191.50/27,864.27 = 11,359.50/x
  3. Step 3: Cross multiply
    20,191.50x = 27,864.27 × 11,359.50
  4. Step 4: Simplify right side
    20,191.50x = 316,524,175.07
  5. Step 5: Solve for x
    x = 316,524,175.07/20,191.50
  6. Step 6: Final answer
    x = 15,676.11

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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.