Home / 20,449.41-28,270.50-20,262.30

Finding the Fourth Proportional to 20,449.41, 28,270.50 and 20,262.30

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Solution

The fourth proportional to 20,449.41, 28,270.50 and 20,262.30 is: 28,011.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,449.41 : 28,270.50 = 20,262.30 : x
  2. Step 2: Convert to fraction form
    20,449.41/28,270.50 = 20,262.30/x
  3. Step 3: Cross multiply
    20,449.41x = 28,270.50 × 20,262.30
  4. Step 4: Simplify right side
    20,449.41x = 572,825,352.15
  5. Step 5: Solve for x
    x = 572,825,352.15/20,449.41
  6. Step 6: Final answer
    x = 28,011.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.