Home / 20,732.75-28,611.40-11,301.52

Finding the Fourth Proportional to 20,732.75, 28,611.40 and 11,301.52

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Solution

The fourth proportional to 20,732.75, 28,611.40 and 11,301.52 is: 15,596.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,732.75 : 28,611.40 = 11,301.52 : x
  2. Step 2: Convert to fraction form
    20,732.75/28,611.40 = 11,301.52/x
  3. Step 3: Cross multiply
    20,732.75x = 28,611.40 × 11,301.52
  4. Step 4: Simplify right side
    20,732.75x = 323,352,309.33
  5. Step 5: Solve for x
    x = 323,352,309.33/20,732.75
  6. Step 6: Final answer
    x = 15,596.21

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1.5x scale

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.