Home / 20,334.80-30,500.15-9,238.51

Finding the Fourth Proportional to 20,334.80, 30,500.15 and 9,238.51

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Solution

The fourth proportional to 20,334.80, 30,500.15 and 9,238.51 is: 13,856.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,334.80 : 30,500.15 = 9,238.51 : x
  2. Step 2: Convert to fraction form
    20,334.80/30,500.15 = 9,238.51/x
  3. Step 3: Cross multiply
    20,334.80x = 30,500.15 × 9,238.51
  4. Step 4: Simplify right side
    20,334.80x = 281,775,761.15
  5. Step 5: Solve for x
    x = 281,775,761.15/20,334.80
  6. Step 6: Final answer
    x = 13,856.83

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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.