Home / 20,359.86-28,098.33-11,407.23

Finding the Fourth Proportional to 20,359.86, 28,098.33 and 11,407.23

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Solution

The fourth proportional to 20,359.86, 28,098.33 and 11,407.23 is: 15,742.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,359.86 : 28,098.33 = 11,407.23 : x
  2. Step 2: Convert to fraction form
    20,359.86/28,098.33 = 11,407.23/x
  3. Step 3: Cross multiply
    20,359.86x = 28,098.33 × 11,407.23
  4. Step 4: Simplify right side
    20,359.86x = 320,524,112.93
  5. Step 5: Solve for x
    x = 320,524,112.93/20,359.86
  6. Step 6: Final answer
    x = 15,742.94

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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.