Home / 20,304.12-30,456-5,513.04

Finding the Fourth Proportional to 20,304.12, 30,456 and 5,513.04

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Solution

The fourth proportional to 20,304.12, 30,456 and 5,513.04 is: 8,269.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,304.12 : 30,456 = 5,513.04 : x
  2. Step 2: Convert to fraction form
    20,304.12/30,456 = 5,513.04/x
  3. Step 3: Cross multiply
    20,304.12x = 30,456 × 5,513.04
  4. Step 4: Simplify right side
    20,304.12x = 167,905,146.24
  5. Step 5: Solve for x
    x = 167,905,146.24/20,304.12
  6. Step 6: Final answer
    x = 8,269.51

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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.