Home / 23,531.45-32,471.28-12,920.85

Finding the Fourth Proportional to 23,531.45, 32,471.28 and 12,920.85

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Solution

The fourth proportional to 23,531.45, 32,471.28 and 12,920.85 is: 17,829.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,531.45 : 32,471.28 = 12,920.85 : x
  2. Step 2: Convert to fraction form
    23,531.45/32,471.28 = 12,920.85/x
  3. Step 3: Cross multiply
    23,531.45x = 32,471.28 × 12,920.85
  4. Step 4: Simplify right side
    23,531.45x = 419,556,538.19
  5. Step 5: Solve for x
    x = 419,556,538.19/23,531.45
  6. Step 6: Final answer
    x = 17,829.61

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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.