Home / 20,337.60-30,511.40-7,010.80

Finding the Fourth Proportional to 20,337.60, 30,511.40 and 7,010.80

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Solution

The fourth proportional to 20,337.60, 30,511.40 and 7,010.80 is: 10,517.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,337.60 : 30,511.40 = 7,010.80 : x
  2. Step 2: Convert to fraction form
    20,337.60/30,511.40 = 7,010.80/x
  3. Step 3: Cross multiply
    20,337.60x = 30,511.40 × 7,010.80
  4. Step 4: Simplify right side
    20,337.60x = 213,909,323.12
  5. Step 5: Solve for x
    x = 213,909,323.12/20,337.60
  6. Step 6: Final answer
    x = 10,517.92

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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.