Home / 27,079.13-37,378.61-18,609.30

Finding the Fourth Proportional to 27,079.13, 37,378.61 and 18,609.30

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Solution

The fourth proportional to 27,079.13, 37,378.61 and 18,609.30 is: 25,687.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,079.13 : 37,378.61 = 18,609.30 : x
  2. Step 2: Convert to fraction form
    27,079.13/37,378.61 = 18,609.30/x
  3. Step 3: Cross multiply
    27,079.13x = 37,378.61 × 18,609.30
  4. Step 4: Simplify right side
    27,079.13x = 695,589,767.07
  5. Step 5: Solve for x
    x = 695,589,767.07/27,079.13
  6. Step 6: Final answer
    x = 25,687.30

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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.