Home / 40,215.54-55,497.78-22,311.72

Finding the Fourth Proportional to 40,215.54, 55,497.78 and 22,311.72

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Solution

The fourth proportional to 40,215.54, 55,497.78 and 22,311.72 is: 30,790.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,215.54 : 55,497.78 = 22,311.72 : x
  2. Step 2: Convert to fraction form
    40,215.54/55,497.78 = 22,311.72/x
  3. Step 3: Cross multiply
    40,215.54x = 55,497.78 × 22,311.72
  4. Step 4: Simplify right side
    40,215.54x = 1,238,250,927.98
  5. Step 5: Solve for x
    x = 1,238,250,927.98/40,215.54
  6. Step 6: Final answer
    x = 30,790.36

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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.