Home / 20,293.15-28,007.76-12,337.87

Finding the Fourth Proportional to 20,293.15, 28,007.76 and 12,337.87

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Solution

The fourth proportional to 20,293.15, 28,007.76 and 12,337.87 is: 17,028.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,293.15 : 28,007.76 = 12,337.87 : x
  2. Step 2: Convert to fraction form
    20,293.15/28,007.76 = 12,337.87/x
  3. Step 3: Cross multiply
    20,293.15x = 28,007.76 × 12,337.87
  4. Step 4: Simplify right side
    20,293.15x = 345,556,101.87
  5. Step 5: Solve for x
    x = 345,556,101.87/20,293.15
  6. Step 6: Final answer
    x = 17,028.21

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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.