Home / 27,802.27-38,367.78-15,866.72

Finding the Fourth Proportional to 27,802.27, 38,367.78 and 15,866.72

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Solution

The fourth proportional to 27,802.27, 38,367.78 and 15,866.72 is: 21,896.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,802.27 : 38,367.78 = 15,866.72 : x
  2. Step 2: Convert to fraction form
    27,802.27/38,367.78 = 15,866.72/x
  3. Step 3: Cross multiply
    27,802.27x = 38,367.78 × 15,866.72
  4. Step 4: Simplify right side
    27,802.27x = 608,770,742.95
  5. Step 5: Solve for x
    x = 608,770,742.95/27,802.27
  6. Step 6: Final answer
    x = 21,896.44

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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.