Home / 21,432.75-32,169.83-10,347.22

Finding the Fourth Proportional to 21,432.75, 32,169.83 and 10,347.22

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Solution

The fourth proportional to 21,432.75, 32,169.83 and 10,347.22 is: 15,530.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,432.75 : 32,169.83 = 10,347.22 : x
  2. Step 2: Convert to fraction form
    21,432.75/32,169.83 = 10,347.22/x
  3. Step 3: Cross multiply
    21,432.75x = 32,169.83 × 10,347.22
  4. Step 4: Simplify right side
    21,432.75x = 332,868,308.37
  5. Step 5: Solve for x
    x = 332,868,308.37/21,432.75
  6. Step 6: Final answer
    x = 15,530.83

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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.