Home / 27,687.88-38,189.55-18,484.80

Finding the Fourth Proportional to 27,687.88, 38,189.55 and 18,484.80

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Solution

The fourth proportional to 27,687.88, 38,189.55 and 18,484.80 is: 25,495.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,687.88 : 38,189.55 = 18,484.80 : x
  2. Step 2: Convert to fraction form
    27,687.88/38,189.55 = 18,484.80/x
  3. Step 3: Cross multiply
    27,687.88x = 38,189.55 × 18,484.80
  4. Step 4: Simplify right side
    27,687.88x = 705,926,193.84
  5. Step 5: Solve for x
    x = 705,926,193.84/27,687.88
  6. Step 6: Final answer
    x = 25,495.86

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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.