Home / 27,789.48-41,640.36-15,291.12

Finding the Fourth Proportional to 27,789.48, 41,640.36 and 15,291.12

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Solution

The fourth proportional to 27,789.48, 41,640.36 and 15,291.12 is: 22,912.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,789.48 : 41,640.36 = 15,291.12 : x
  2. Step 2: Convert to fraction form
    27,789.48/41,640.36 = 15,291.12/x
  3. Step 3: Cross multiply
    27,789.48x = 41,640.36 × 15,291.12
  4. Step 4: Simplify right side
    27,789.48x = 636,727,741.60
  5. Step 5: Solve for x
    x = 636,727,741.60/27,789.48
  6. Step 6: Final answer
    x = 22,912.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.