Home / 20,186.31-27,854.33-11,232.57

Finding the Fourth Proportional to 20,186.31, 27,854.33 and 11,232.57

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Solution

The fourth proportional to 20,186.31, 27,854.33 and 11,232.57 is: 15,499.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,186.31 : 27,854.33 = 11,232.57 : x
  2. Step 2: Convert to fraction form
    20,186.31/27,854.33 = 11,232.57/x
  3. Step 3: Cross multiply
    20,186.31x = 27,854.33 × 11,232.57
  4. Step 4: Simplify right side
    20,186.31x = 312,875,823.00
  5. Step 5: Solve for x
    x = 312,875,823.00/20,186.31
  6. Step 6: Final answer
    x = 15,499.40

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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.