Home / 20,859.24-28,788.17-11,908.02

Finding the Fourth Proportional to 20,859.24, 28,788.17 and 11,908.02

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Solution

The fourth proportional to 20,859.24, 28,788.17 and 11,908.02 is: 16,434.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,859.24 : 28,788.17 = 11,908.02 : x
  2. Step 2: Convert to fraction form
    20,859.24/28,788.17 = 11,908.02/x
  3. Step 3: Cross multiply
    20,859.24x = 28,788.17 × 11,908.02
  4. Step 4: Simplify right side
    20,859.24x = 342,810,044.58
  5. Step 5: Solve for x
    x = 342,810,044.58/20,859.24
  6. Step 6: Final answer
    x = 16,434.45

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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.