Home / 28,040.12-42,067.73-9,323.18

Finding the Fourth Proportional to 28,040.12, 42,067.73 and 9,323.18

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Solution

The fourth proportional to 28,040.12, 42,067.73 and 9,323.18 is: 13,987.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,040.12 : 42,067.73 = 9,323.18 : x
  2. Step 2: Convert to fraction form
    28,040.12/42,067.73 = 9,323.18/x
  3. Step 3: Cross multiply
    28,040.12x = 42,067.73 × 9,323.18
  4. Step 4: Simplify right side
    28,040.12x = 392,204,831.95
  5. Step 5: Solve for x
    x = 392,204,831.95/28,040.12
  6. Step 6: Final answer
    x = 13,987.28

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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.