Home / 21,401.44-32,102.18-20,100.90

Finding the Fourth Proportional to 21,401.44, 32,102.18 and 20,100.90

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Solution

The fourth proportional to 21,401.44, 32,102.18 and 20,100.90 is: 30,151.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,401.44 : 32,102.18 = 20,100.90 : x
  2. Step 2: Convert to fraction form
    21,401.44/32,102.18 = 20,100.90/x
  3. Step 3: Cross multiply
    21,401.44x = 32,102.18 × 20,100.90
  4. Step 4: Simplify right side
    21,401.44x = 645,282,709.96
  5. Step 5: Solve for x
    x = 645,282,709.96/21,401.44
  6. Step 6: Final answer
    x = 30,151.37

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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.