Home / 21,805.04-32,716.92-10,120.88

Finding the Fourth Proportional to 21,805.04, 32,716.92 and 10,120.88

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Solution

The fourth proportional to 21,805.04, 32,716.92 and 10,120.88 is: 15,185.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,805.04 : 32,716.92 = 10,120.88 : x
  2. Step 2: Convert to fraction form
    21,805.04/32,716.92 = 10,120.88/x
  3. Step 3: Cross multiply
    21,805.04x = 32,716.92 × 10,120.88
  4. Step 4: Simplify right side
    21,805.04x = 331,124,021.29
  5. Step 5: Solve for x
    x = 331,124,021.29/21,805.04
  6. Step 6: Final answer
    x = 15,185.66

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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.