Home / 20,061.23-27,684.09-11,108.70

Finding the Fourth Proportional to 20,061.23, 27,684.09 and 11,108.70

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Solution

The fourth proportional to 20,061.23, 27,684.09 and 11,108.70 is: 15,329.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,061.23 : 27,684.09 = 11,108.70 : x
  2. Step 2: Convert to fraction form
    20,061.23/27,684.09 = 11,108.70/x
  3. Step 3: Cross multiply
    20,061.23x = 27,684.09 × 11,108.70
  4. Step 4: Simplify right side
    20,061.23x = 307,534,250.58
  5. Step 5: Solve for x
    x = 307,534,250.58/20,061.23
  6. Step 6: Final answer
    x = 15,329.78

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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.