Home / 21,341.56-29,452.22-11,909.88

Finding the Fourth Proportional to 21,341.56, 29,452.22 and 11,909.88

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Solution

The fourth proportional to 21,341.56, 29,452.22 and 11,909.88 is: 16,436.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,341.56 : 29,452.22 = 11,909.88 : x
  2. Step 2: Convert to fraction form
    21,341.56/29,452.22 = 11,909.88/x
  3. Step 3: Cross multiply
    21,341.56x = 29,452.22 × 11,909.88
  4. Step 4: Simplify right side
    21,341.56x = 350,772,405.93
  5. Step 5: Solve for x
    x = 350,772,405.93/21,341.56
  6. Step 6: Final answer
    x = 16,436.12

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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.