Home / 20,048.57-30,012.94-12,127.11

Finding the Fourth Proportional to 20,048.57, 30,012.94 and 12,127.11

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Solution

The fourth proportional to 20,048.57, 30,012.94 and 12,127.11 is: 18,154.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,048.57 : 30,012.94 = 12,127.11 : x
  2. Step 2: Convert to fraction form
    20,048.57/30,012.94 = 12,127.11/x
  3. Step 3: Cross multiply
    20,048.57x = 30,012.94 × 12,127.11
  4. Step 4: Simplify right side
    20,048.57x = 363,970,232.00
  5. Step 5: Solve for x
    x = 363,970,232.00/20,048.57
  6. Step 6: Final answer
    x = 18,154.42

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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.