Home / 20,257.38-27,955.77-11,304.69

Finding the Fourth Proportional to 20,257.38, 27,955.77 and 11,304.69

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Solution

The fourth proportional to 20,257.38, 27,955.77 and 11,304.69 is: 15,600.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,257.38 : 27,955.77 = 11,304.69 : x
  2. Step 2: Convert to fraction form
    20,257.38/27,955.77 = 11,304.69/x
  3. Step 3: Cross multiply
    20,257.38x = 27,955.77 × 11,304.69
  4. Step 4: Simplify right side
    20,257.38x = 316,031,313.56
  5. Step 5: Solve for x
    x = 316,031,313.56/20,257.38
  6. Step 6: Final answer
    x = 15,600.80

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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.