Home / 22,012.80-32,974.40-13,667.20

Finding the Fourth Proportional to 22,012.80, 32,974.40 and 13,667.20

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Solution

The fourth proportional to 22,012.80, 32,974.40 and 13,667.20 is: 20,472.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,012.80 : 32,974.40 = 13,667.20 : x
  2. Step 2: Convert to fraction form
    22,012.80/32,974.40 = 13,667.20/x
  3. Step 3: Cross multiply
    22,012.80x = 32,974.40 × 13,667.20
  4. Step 4: Simplify right side
    22,012.80x = 450,667,719.68
  5. Step 5: Solve for x
    x = 450,667,719.68/22,012.80
  6. Step 6: Final answer
    x = 20,472.98

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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.