Home / 27,550.80-38,016.72-18,617.76

Finding the Fourth Proportional to 27,550.80, 38,016.72 and 18,617.76

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Solution

The fourth proportional to 27,550.80, 38,016.72 and 18,617.76 is: 25,690.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,550.80 : 38,016.72 = 18,617.76 : x
  2. Step 2: Convert to fraction form
    27,550.80/38,016.72 = 18,617.76/x
  3. Step 3: Cross multiply
    27,550.80x = 38,016.72 × 18,617.76
  4. Step 4: Simplify right side
    27,550.80x = 707,786,168.95
  5. Step 5: Solve for x
    x = 707,786,168.95/27,550.80
  6. Step 6: Final answer
    x = 25,690.22

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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.