Home / 27,770.40-38,324.08-15,195.16

Finding the Fourth Proportional to 27,770.40, 38,324.08 and 15,195.16

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Solution

The fourth proportional to 27,770.40, 38,324.08 and 15,195.16 is: 20,969.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,770.40 : 38,324.08 = 15,195.16 : x
  2. Step 2: Convert to fraction form
    27,770.40/38,324.08 = 15,195.16/x
  3. Step 3: Cross multiply
    27,770.40x = 38,324.08 × 15,195.16
  4. Step 4: Simplify right side
    27,770.40x = 582,340,527.45
  5. Step 5: Solve for x
    x = 582,340,527.45/27,770.40
  6. Step 6: Final answer
    x = 20,969.83

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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.