Home / 28,067.14-38,779.14-22,143.88

Finding the Fourth Proportional to 28,067.14, 38,779.14 and 22,143.88

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Solution

The fourth proportional to 28,067.14, 38,779.14 and 22,143.88 is: 30,595.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,067.14 : 38,779.14 = 22,143.88 : x
  2. Step 2: Convert to fraction form
    28,067.14/38,779.14 = 22,143.88/x
  3. Step 3: Cross multiply
    28,067.14x = 38,779.14 × 22,143.88
  4. Step 4: Simplify right side
    28,067.14x = 858,720,622.66
  5. Step 5: Solve for x
    x = 858,720,622.66/28,067.14
  6. Step 6: Final answer
    x = 30,595.23

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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.