Home / 22,067.21-30,428.02-20,667.53

Finding the Fourth Proportional to 22,067.21, 30,428.02 and 20,667.53

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Solution

The fourth proportional to 22,067.21, 30,428.02 and 20,667.53 is: 28,498.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,067.21 : 30,428.02 = 20,667.53 : x
  2. Step 2: Convert to fraction form
    22,067.21/30,428.02 = 20,667.53/x
  3. Step 3: Cross multiply
    22,067.21x = 30,428.02 × 20,667.53
  4. Step 4: Simplify right side
    22,067.21x = 628,872,016.19
  5. Step 5: Solve for x
    x = 628,872,016.19/22,067.21
  6. Step 6: Final answer
    x = 28,498.03

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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.