Home / 20,293.85-28,014.14-12,338.62

Finding the Fourth Proportional to 20,293.85, 28,014.14 and 12,338.62

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Solution

The fourth proportional to 20,293.85, 28,014.14 and 12,338.62 is: 17,032.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,293.85 : 28,014.14 = 12,338.62 : x
  2. Step 2: Convert to fraction form
    20,293.85/28,014.14 = 12,338.62/x
  3. Step 3: Cross multiply
    20,293.85x = 28,014.14 × 12,338.62
  4. Step 4: Simplify right side
    20,293.85x = 345,655,626.32
  5. Step 5: Solve for x
    x = 345,655,626.32/20,293.85
  6. Step 6: Final answer
    x = 17,032.53

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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.