Home / 20,263.43-30,388.97-7,112.68

Finding the Fourth Proportional to 20,263.43, 30,388.97 and 7,112.68

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Solution

The fourth proportional to 20,263.43, 30,388.97 and 7,112.68 is: 10,666.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,263.43 : 30,388.97 = 7,112.68 : x
  2. Step 2: Convert to fraction form
    20,263.43/30,388.97 = 7,112.68/x
  3. Step 3: Cross multiply
    20,263.43x = 30,388.97 × 7,112.68
  4. Step 4: Simplify right side
    20,263.43x = 216,146,960.95
  5. Step 5: Solve for x
    x = 216,146,960.95/20,263.43
  6. Step 6: Final answer
    x = 10,666.85

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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.