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Finding the Fourth Proportional to 21,630.88, 32,449.21 and 10,536.11

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Solution

The fourth proportional to 21,630.88, 32,449.21 and 10,536.11 is: 15,805.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,630.88 : 32,449.21 = 10,536.11 : x
  2. Step 2: Convert to fraction form
    21,630.88/32,449.21 = 10,536.11/x
  3. Step 3: Cross multiply
    21,630.88x = 32,449.21 × 10,536.11
  4. Step 4: Simplify right side
    21,630.88x = 341,888,379.07
  5. Step 5: Solve for x
    x = 341,888,379.07/21,630.88
  6. Step 6: Final answer
    x = 15,805.57

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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.