Home / 21,909.67-32,873.43-10,215.70

Finding the Fourth Proportional to 21,909.67, 32,873.43 and 10,215.70

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Solution

The fourth proportional to 21,909.67, 32,873.43 and 10,215.70 is: 15,327.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,909.67 : 32,873.43 = 10,215.70 : x
  2. Step 2: Convert to fraction form
    21,909.67/32,873.43 = 10,215.70/x
  3. Step 3: Cross multiply
    21,909.67x = 32,873.43 × 10,215.70
  4. Step 4: Simplify right side
    21,909.67x = 335,825,098.85
  5. Step 5: Solve for x
    x = 335,825,098.85/21,909.67
  6. Step 6: Final answer
    x = 15,327.71

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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.