Home / 20,833.35-28,750.36-11,759.18

Finding the Fourth Proportional to 20,833.35, 28,750.36 and 11,759.18

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Solution

The fourth proportional to 20,833.35, 28,750.36 and 11,759.18 is: 16,227.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,833.35 : 28,750.36 = 11,759.18 : x
  2. Step 2: Convert to fraction form
    20,833.35/28,750.36 = 11,759.18/x
  3. Step 3: Cross multiply
    20,833.35x = 28,750.36 × 11,759.18
  4. Step 4: Simplify right side
    20,833.35x = 338,080,712.92
  5. Step 5: Solve for x
    x = 338,080,712.92/20,833.35
  6. Step 6: Final answer
    x = 16,227.86

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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.