Home / 21,420.75-32,151.90-10,335.23

Finding the Fourth Proportional to 21,420.75, 32,151.90 and 10,335.23

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Solution

The fourth proportional to 21,420.75, 32,151.90 and 10,335.23 is: 15,512.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,420.75 : 32,151.90 = 10,335.23 : x
  2. Step 2: Convert to fraction form
    21,420.75/32,151.90 = 10,335.23/x
  3. Step 3: Cross multiply
    21,420.75x = 32,151.90 × 10,335.23
  4. Step 4: Simplify right side
    21,420.75x = 332,297,120.68
  5. Step 5: Solve for x
    x = 332,297,120.68/21,420.75
  6. Step 6: Final answer
    x = 15,512.86

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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.