Home / 20,655.03-30,982.65-5,072.66

Finding the Fourth Proportional to 20,655.03, 30,982.65 and 5,072.66

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Solution

The fourth proportional to 20,655.03, 30,982.65 and 5,072.66 is: 7,609.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,655.03 : 30,982.65 = 5,072.66 : x
  2. Step 2: Convert to fraction form
    20,655.03/30,982.65 = 5,072.66/x
  3. Step 3: Cross multiply
    20,655.03x = 30,982.65 × 5,072.66
  4. Step 4: Simplify right side
    20,655.03x = 157,164,449.35
  5. Step 5: Solve for x
    x = 157,164,449.35/20,655.03
  6. Step 6: Final answer
    x = 7,609.02

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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.