Home / 20,357.29-28,095.15-11,743.81

Finding the Fourth Proportional to 20,357.29, 28,095.15 and 11,743.81

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Solution

The fourth proportional to 20,357.29, 28,095.15 and 11,743.81 is: 16,207.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,357.29 : 28,095.15 = 11,743.81 : x
  2. Step 2: Convert to fraction form
    20,357.29/28,095.15 = 11,743.81/x
  3. Step 3: Cross multiply
    20,357.29x = 28,095.15 × 11,743.81
  4. Step 4: Simplify right side
    20,357.29x = 329,944,103.52
  5. Step 5: Solve for x
    x = 329,944,103.52/20,357.29
  6. Step 6: Final answer
    x = 16,207.66

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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.