Home / 20,255.08-27,952.90-11,302.61

Finding the Fourth Proportional to 20,255.08, 27,952.90 and 11,302.61

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Solution

The fourth proportional to 20,255.08, 27,952.90 and 11,302.61 is: 15,598.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,255.08 : 27,952.90 = 11,302.61 : x
  2. Step 2: Convert to fraction form
    20,255.08/27,952.90 = 11,302.61/x
  3. Step 3: Cross multiply
    20,255.08x = 27,952.90 × 11,302.61
  4. Step 4: Simplify right side
    20,255.08x = 315,940,794.90
  5. Step 5: Solve for x
    x = 315,940,794.90/20,255.08
  6. Step 6: Final answer
    x = 15,598.11

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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.