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Finding the Fourth Proportional to 21,902.88, 32,854.29 and 8,758.33

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Solution

The fourth proportional to 21,902.88, 32,854.29 and 8,758.33 is: 13,137.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,902.88 : 32,854.29 = 8,758.33 : x
  2. Step 2: Convert to fraction form
    21,902.88/32,854.29 = 8,758.33/x
  3. Step 3: Cross multiply
    21,902.88x = 32,854.29 × 8,758.33
  4. Step 4: Simplify right side
    21,902.88x = 287,748,713.74
  5. Step 5: Solve for x
    x = 287,748,713.74/21,902.88
  6. Step 6: Final answer
    x = 13,137.48

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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.