Home / 20,084.85-27,716.67-11,132.28

Finding the Fourth Proportional to 20,084.85, 27,716.67 and 11,132.28

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Solution

The fourth proportional to 20,084.85, 27,716.67 and 11,132.28 is: 15,362.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,084.85 : 27,716.67 = 11,132.28 : x
  2. Step 2: Convert to fraction form
    20,084.85/27,716.67 = 11,132.28/x
  3. Step 3: Cross multiply
    20,084.85x = 27,716.67 × 11,132.28
  4. Step 4: Simplify right side
    20,084.85x = 308,549,731.11
  5. Step 5: Solve for x
    x = 308,549,731.11/20,084.85
  6. Step 6: Final answer
    x = 15,362.31

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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.