Home / 20,061.36-30,121.20-14,812.56

Finding the Fourth Proportional to 20,061.36, 30,121.20 and 14,812.56

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Solution

The fourth proportional to 20,061.36, 30,121.20 and 14,812.56 is: 22,240.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,061.36 : 30,121.20 = 14,812.56 : x
  2. Step 2: Convert to fraction form
    20,061.36/30,121.20 = 14,812.56/x
  3. Step 3: Cross multiply
    20,061.36x = 30,121.20 × 14,812.56
  4. Step 4: Simplify right side
    20,061.36x = 446,172,082.27
  5. Step 5: Solve for x
    x = 446,172,082.27/20,061.36
  6. Step 6: Final answer
    x = 22,240.37

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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.