Home / 27,778.08-38,293.83-19,806.48

Finding the Fourth Proportional to 27,778.08, 38,293.83 and 19,806.48

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Solution

The fourth proportional to 27,778.08, 38,293.83 and 19,806.48 is: 27,304.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,778.08 : 38,293.83 = 19,806.48 : x
  2. Step 2: Convert to fraction form
    27,778.08/38,293.83 = 19,806.48/x
  3. Step 3: Cross multiply
    27,778.08x = 38,293.83 × 19,806.48
  4. Step 4: Simplify right side
    27,778.08x = 758,465,978.02
  5. Step 5: Solve for x
    x = 758,465,978.02/27,778.08
  6. Step 6: Final answer
    x = 27,304.48

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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.