Home / 27,192.24-40,788.81-8,472.78

Finding the Fourth Proportional to 27,192.24, 40,788.81 and 8,472.78

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Solution

The fourth proportional to 27,192.24, 40,788.81 and 8,472.78 is: 12,709.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,192.24 : 40,788.81 = 8,472.78 : x
  2. Step 2: Convert to fraction form
    27,192.24/40,788.81 = 8,472.78/x
  3. Step 3: Cross multiply
    27,192.24x = 40,788.81 × 8,472.78
  4. Step 4: Simplify right side
    27,192.24x = 345,594,613.59
  5. Step 5: Solve for x
    x = 345,594,613.59/27,192.24
  6. Step 6: Final answer
    x = 12,709.31

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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.