Home / 28,628.86-39,508.24-17,296.78

Finding the Fourth Proportional to 28,628.86, 39,508.24 and 17,296.78

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Solution

The fourth proportional to 28,628.86, 39,508.24 and 17,296.78 is: 23,869.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,628.86 : 39,508.24 = 17,296.78 : x
  2. Step 2: Convert to fraction form
    28,628.86/39,508.24 = 17,296.78/x
  3. Step 3: Cross multiply
    28,628.86x = 39,508.24 × 17,296.78
  4. Step 4: Simplify right side
    28,628.86x = 683,365,335.47
  5. Step 5: Solve for x
    x = 683,365,335.47/28,628.86
  6. Step 6: Final answer
    x = 23,869.81

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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.