Home / 28,067.34-38,679.34-20,095.72

Finding the Fourth Proportional to 28,067.34, 38,679.34 and 20,095.72

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Solution

The fourth proportional to 28,067.34, 38,679.34 and 20,095.72 is: 27,693.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,067.34 : 38,679.34 = 20,095.72 : x
  2. Step 2: Convert to fraction form
    28,067.34/38,679.34 = 20,095.72/x
  3. Step 3: Cross multiply
    28,067.34x = 38,679.34 × 20,095.72
  4. Step 4: Simplify right side
    28,067.34x = 777,289,186.42
  5. Step 5: Solve for x
    x = 777,289,186.42/28,067.34
  6. Step 6: Final answer
    x = 27,693.72

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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.