Home / 27,648.27-38,140.07-18,698.78

Finding the Fourth Proportional to 27,648.27, 38,140.07 and 18,698.78

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Solution

The fourth proportional to 27,648.27, 38,140.07 and 18,698.78 is: 25,794.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,648.27 : 38,140.07 = 18,698.78 : x
  2. Step 2: Convert to fraction form
    27,648.27/38,140.07 = 18,698.78/x
  3. Step 3: Cross multiply
    27,648.27x = 38,140.07 × 18,698.78
  4. Step 4: Simplify right side
    27,648.27x = 713,172,779.97
  5. Step 5: Solve for x
    x = 713,172,779.97/27,648.27
  6. Step 6: Final answer
    x = 25,794.48

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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.