Home / 28,067.08-38,732.36-15,491.82

Finding the Fourth Proportional to 28,067.08, 38,732.36 and 15,491.82

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Solution

The fourth proportional to 28,067.08, 38,732.36 and 15,491.82 is: 21,378.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,067.08 : 38,732.36 = 15,491.82 : x
  2. Step 2: Convert to fraction form
    28,067.08/38,732.36 = 15,491.82/x
  3. Step 3: Cross multiply
    28,067.08x = 38,732.36 × 15,491.82
  4. Step 4: Simplify right side
    28,067.08x = 600,034,749.30
  5. Step 5: Solve for x
    x = 600,034,749.30/28,067.08
  6. Step 6: Final answer
    x = 21,378.60

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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.