Home / 28,040.24-42,067.92-9,323.30

Finding the Fourth Proportional to 28,040.24, 42,067.92 and 9,323.30

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Solution

The fourth proportional to 28,040.24, 42,067.92 and 9,323.30 is: 13,987.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,040.24 : 42,067.92 = 9,323.30 : x
  2. Step 2: Convert to fraction form
    28,040.24/42,067.92 = 9,323.30/x
  3. Step 3: Cross multiply
    28,040.24x = 42,067.92 × 9,323.30
  4. Step 4: Simplify right side
    28,040.24x = 392,211,838.54
  5. Step 5: Solve for x
    x = 392,211,838.54/28,040.24
  6. Step 6: Final answer
    x = 13,987.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.