Home / 20,100.80-30,143.47-9,562.70

Finding the Fourth Proportional to 20,100.80, 30,143.47 and 9,562.70

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Solution

The fourth proportional to 20,100.80, 30,143.47 and 9,562.70 is: 14,340.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,100.80 : 30,143.47 = 9,562.70 : x
  2. Step 2: Convert to fraction form
    20,100.80/30,143.47 = 9,562.70/x
  3. Step 3: Cross multiply
    20,100.80x = 30,143.47 × 9,562.70
  4. Step 4: Simplify right side
    20,100.80x = 288,252,960.57
  5. Step 5: Solve for x
    x = 288,252,960.57/20,100.80
  6. Step 6: Final answer
    x = 14,340.37

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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.