Home / 20,535.86-28,339.53-11,104.46

Finding the Fourth Proportional to 20,535.86, 28,339.53 and 11,104.46

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Solution

The fourth proportional to 20,535.86, 28,339.53 and 11,104.46 is: 15,324.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,535.86 : 28,339.53 = 11,104.46 : x
  2. Step 2: Convert to fraction form
    20,535.86/28,339.53 = 11,104.46/x
  3. Step 3: Cross multiply
    20,535.86x = 28,339.53 × 11,104.46
  4. Step 4: Simplify right side
    20,535.86x = 314,695,177.30
  5. Step 5: Solve for x
    x = 314,695,177.30/20,535.86
  6. Step 6: Final answer
    x = 15,324.18

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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.