Home / 20,698.89-28,565.16-11,625.85

Finding the Fourth Proportional to 20,698.89, 28,565.16 and 11,625.85

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Solution

The fourth proportional to 20,698.89, 28,565.16 and 11,625.85 is: 16,044.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,698.89 : 28,565.16 = 11,625.85 : x
  2. Step 2: Convert to fraction form
    20,698.89/28,565.16 = 11,625.85/x
  3. Step 3: Cross multiply
    20,698.89x = 28,565.16 × 11,625.85
  4. Step 4: Simplify right side
    20,698.89x = 332,094,406.28
  5. Step 5: Solve for x
    x = 332,094,406.28/20,698.89
  6. Step 6: Final answer
    x = 16,044.07

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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.