Home / 27,617.98-38,143.85-18,649.92

Finding the Fourth Proportional to 27,617.98, 38,143.85 and 18,649.92

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Solution

The fourth proportional to 27,617.98, 38,143.85 and 18,649.92 is: 25,757.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,617.98 : 38,143.85 = 18,649.92 : x
  2. Step 2: Convert to fraction form
    27,617.98/38,143.85 = 18,649.92/x
  3. Step 3: Cross multiply
    27,617.98x = 38,143.85 × 18,649.92
  4. Step 4: Simplify right side
    27,617.98x = 711,379,750.99
  5. Step 5: Solve for x
    x = 711,379,750.99/27,617.98
  6. Step 6: Final answer
    x = 25,757.85

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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.