Home / 27,661.30-38,171.44-15,086.04

Finding the Fourth Proportional to 27,661.30, 38,171.44 and 15,086.04

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Solution

The fourth proportional to 27,661.30, 38,171.44 and 15,086.04 is: 20,818.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,661.30 : 38,171.44 = 15,086.04 : x
  2. Step 2: Convert to fraction form
    27,661.30/38,171.44 = 15,086.04/x
  3. Step 3: Cross multiply
    27,661.30x = 38,171.44 × 15,086.04
  4. Step 4: Simplify right side
    27,661.30x = 575,855,870.70
  5. Step 5: Solve for x
    x = 575,855,870.70/27,661.30
  6. Step 6: Final answer
    x = 20,818.11

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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.