Home / 20,231.18-30,265.46-17,487.30

Finding the Fourth Proportional to 20,231.18, 30,265.46 and 17,487.30

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Solution

The fourth proportional to 20,231.18, 30,265.46 and 17,487.30 is: 26,160.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,231.18 : 30,265.46 = 17,487.30 : x
  2. Step 2: Convert to fraction form
    20,231.18/30,265.46 = 17,487.30/x
  3. Step 3: Cross multiply
    20,231.18x = 30,265.46 × 17,487.30
  4. Step 4: Simplify right side
    20,231.18x = 529,261,178.66
  5. Step 5: Solve for x
    x = 529,261,178.66/20,231.18
  6. Step 6: Final answer
    x = 26,160.67

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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.