Home / 22,017.12-30,378.88-13,067.60

Finding the Fourth Proportional to 22,017.12, 30,378.88 and 13,067.60

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Solution

The fourth proportional to 22,017.12, 30,378.88 and 13,067.60 is: 18,030.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,017.12 : 30,378.88 = 13,067.60 : x
  2. Step 2: Convert to fraction form
    22,017.12/30,378.88 = 13,067.60/x
  3. Step 3: Cross multiply
    22,017.12x = 30,378.88 × 13,067.60
  4. Step 4: Simplify right side
    22,017.12x = 396,979,052.29
  5. Step 5: Solve for x
    x = 396,979,052.29/22,017.12
  6. Step 6: Final answer
    x = 18,030.47

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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.