Home / 27,789.85-38,349.99-15,214.60

Finding the Fourth Proportional to 27,789.85, 38,349.99 and 15,214.60

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Solution

The fourth proportional to 27,789.85, 38,349.99 and 15,214.60 is: 20,996.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,789.85 : 38,349.99 = 15,214.60 : x
  2. Step 2: Convert to fraction form
    27,789.85/38,349.99 = 15,214.60/x
  3. Step 3: Cross multiply
    27,789.85x = 38,349.99 × 15,214.60
  4. Step 4: Simplify right side
    27,789.85x = 583,479,757.85
  5. Step 5: Solve for x
    x = 583,479,757.85/27,789.85
  6. Step 6: Final answer
    x = 20,996.15

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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.