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Finding the Fourth Proportional to 22,016.80, 32,960.40 and 19,424.80

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Solution

The fourth proportional to 22,016.80, 32,960.40 and 19,424.80 is: 29,080.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,016.80 : 32,960.40 = 19,424.80 : x
  2. Step 2: Convert to fraction form
    22,016.80/32,960.40 = 19,424.80/x
  3. Step 3: Cross multiply
    22,016.80x = 32,960.40 × 19,424.80
  4. Step 4: Simplify right side
    22,016.80x = 640,249,177.92
  5. Step 5: Solve for x
    x = 640,249,177.92/22,016.80
  6. Step 6: Final answer
    x = 29,080.03

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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.