Home / 27,747.06-38,290.35-15,171.81

Finding the Fourth Proportional to 27,747.06, 38,290.35 and 15,171.81

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Solution

The fourth proportional to 27,747.06, 38,290.35 and 15,171.81 is: 20,936.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,747.06 : 38,290.35 = 15,171.81 : x
  2. Step 2: Convert to fraction form
    27,747.06/38,290.35 = 15,171.81/x
  3. Step 3: Cross multiply
    27,747.06x = 38,290.35 × 15,171.81
  4. Step 4: Simplify right side
    27,747.06x = 580,933,915.03
  5. Step 5: Solve for x
    x = 580,933,915.03/27,747.06
  6. Step 6: Final answer
    x = 20,936.77

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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.