Home / 20,188.17-30,281.99-7,040.50

Finding the Fourth Proportional to 20,188.17, 30,281.99 and 7,040.50

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Solution

The fourth proportional to 20,188.17, 30,281.99 and 7,040.50 is: 10,560.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,188.17 : 30,281.99 = 7,040.50 : x
  2. Step 2: Convert to fraction form
    20,188.17/30,281.99 = 7,040.50/x
  3. Step 3: Cross multiply
    20,188.17x = 30,281.99 × 7,040.50
  4. Step 4: Simplify right side
    20,188.17x = 213,200,350.60
  5. Step 5: Solve for x
    x = 213,200,350.60/20,188.17
  6. Step 6: Final answer
    x = 10,560.66

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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.