Home / 20,209.32-30,295.23-10,326.81

Finding the Fourth Proportional to 20,209.32, 30,295.23 and 10,326.81

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Solution

The fourth proportional to 20,209.32, 30,295.23 and 10,326.81 is: 15,480.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,209.32 : 30,295.23 = 10,326.81 : x
  2. Step 2: Convert to fraction form
    20,209.32/30,295.23 = 10,326.81/x
  3. Step 3: Cross multiply
    20,209.32x = 30,295.23 × 10,326.81
  4. Step 4: Simplify right side
    20,209.32x = 312,853,084.12
  5. Step 5: Solve for x
    x = 312,853,084.12/20,209.32
  6. Step 6: Final answer
    x = 15,480.63

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.