Home / 21,788.60-32,685.17-9,309.94

Finding the Fourth Proportional to 21,788.60, 32,685.17 and 9,309.94

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Solution

The fourth proportional to 21,788.60, 32,685.17 and 9,309.94 is: 13,965.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,788.60 : 32,685.17 = 9,309.94 : x
  2. Step 2: Convert to fraction form
    21,788.60/32,685.17 = 9,309.94/x
  3. Step 3: Cross multiply
    21,788.60x = 32,685.17 × 9,309.94
  4. Step 4: Simplify right side
    21,788.60x = 304,296,843.33
  5. Step 5: Solve for x
    x = 304,296,843.33/21,788.60
  6. Step 6: Final answer
    x = 13,965.88

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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.