Home / 20,252.19-30,369.36-9,158.43

Finding the Fourth Proportional to 20,252.19, 30,369.36 and 9,158.43

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Solution

The fourth proportional to 20,252.19, 30,369.36 and 9,158.43 is: 13,733.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,252.19 : 30,369.36 = 9,158.43 : x
  2. Step 2: Convert to fraction form
    20,252.19/30,369.36 = 9,158.43/x
  3. Step 3: Cross multiply
    20,252.19x = 30,369.36 × 9,158.43
  4. Step 4: Simplify right side
    20,252.19x = 278,135,657.70
  5. Step 5: Solve for x
    x = 278,135,657.70/20,252.19
  6. Step 6: Final answer
    x = 13,733.61

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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.