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Finding the Fourth Proportional to 29,272.52, 40,396.19 and 15,843.77

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Solution

The fourth proportional to 29,272.52, 40,396.19 and 15,843.77 is: 21,864.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,272.52 : 40,396.19 = 15,843.77 : x
  2. Step 2: Convert to fraction form
    29,272.52/40,396.19 = 15,843.77/x
  3. Step 3: Cross multiply
    29,272.52x = 40,396.19 × 15,843.77
  4. Step 4: Simplify right side
    29,272.52x = 640,027,813.52
  5. Step 5: Solve for x
    x = 640,027,813.52/29,272.52
  6. Step 6: Final answer
    x = 21,864.46

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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.