Home / 21,394.29-32,107.20-10,149.66

Finding the Fourth Proportional to 21,394.29, 32,107.20 and 10,149.66

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Solution

The fourth proportional to 21,394.29, 32,107.20 and 10,149.66 is: 15,231.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,394.29 : 32,107.20 = 10,149.66 : x
  2. Step 2: Convert to fraction form
    21,394.29/32,107.20 = 10,149.66/x
  3. Step 3: Cross multiply
    21,394.29x = 32,107.20 × 10,149.66
  4. Step 4: Simplify right side
    21,394.29x = 325,877,163.55
  5. Step 5: Solve for x
    x = 325,877,163.55/21,394.29
  6. Step 6: Final answer
    x = 15,231.97

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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.