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Finding the Fourth Proportional to 29,180.88, 40,242.78 and 19,105.92

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Solution

The fourth proportional to 29,180.88, 40,242.78 and 19,105.92 is: 26,348.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,180.88 : 40,242.78 = 19,105.92 : x
  2. Step 2: Convert to fraction form
    29,180.88/40,242.78 = 19,105.92/x
  3. Step 3: Cross multiply
    29,180.88x = 40,242.78 × 19,105.92
  4. Step 4: Simplify right side
    29,180.88x = 768,875,335.26
  5. Step 5: Solve for x
    x = 768,875,335.26/29,180.88
  6. Step 6: Final answer
    x = 26,348.60

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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.