Home / 20,301.12-30,448.09-5,511.19

Finding the Fourth Proportional to 20,301.12, 30,448.09 and 5,511.19

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Solution

The fourth proportional to 20,301.12, 30,448.09 and 5,511.19 is: 8,265.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,301.12 : 30,448.09 = 5,511.19 : x
  2. Step 2: Convert to fraction form
    20,301.12/30,448.09 = 5,511.19/x
  3. Step 3: Cross multiply
    20,301.12x = 30,448.09 × 5,511.19
  4. Step 4: Simplify right side
    20,301.12x = 167,805,209.13
  5. Step 5: Solve for x
    x = 167,805,209.13/20,301.12
  6. Step 6: Final answer
    x = 8,265.81

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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.