Home / 20,669.36-31,003.35-8,982.59

Finding the Fourth Proportional to 20,669.36, 31,003.35 and 8,982.59

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Solution

The fourth proportional to 20,669.36, 31,003.35 and 8,982.59 is: 13,473.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,669.36 : 31,003.35 = 8,982.59 : x
  2. Step 2: Convert to fraction form
    20,669.36/31,003.35 = 8,982.59/x
  3. Step 3: Cross multiply
    20,669.36x = 31,003.35 × 8,982.59
  4. Step 4: Simplify right side
    20,669.36x = 278,490,304.17
  5. Step 5: Solve for x
    x = 278,490,304.17/20,669.36
  6. Step 6: Final answer
    x = 13,473.58

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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.