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Finding the Fourth Proportional to 40,379.52, 55,722.81 and 22,473.42

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Solution

The fourth proportional to 40,379.52, 55,722.81 and 22,473.42 is: 31,012.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,379.52 : 55,722.81 = 22,473.42 : x
  2. Step 2: Convert to fraction form
    40,379.52/55,722.81 = 22,473.42/x
  3. Step 3: Cross multiply
    40,379.52x = 55,722.81 × 22,473.42
  4. Step 4: Simplify right side
    40,379.52x = 1,252,282,112.71
  5. Step 5: Solve for x
    x = 1,252,282,112.71/40,379.52
  6. Step 6: Final answer
    x = 31,012.80

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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.