Home / 40,215.90-55,497.96-22,311.12

Finding the Fourth Proportional to 40,215.90, 55,497.96 and 22,311.12

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Solution

The fourth proportional to 40,215.90, 55,497.96 and 22,311.12 is: 30,789.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,215.90 : 55,497.96 = 22,311.12 : x
  2. Step 2: Convert to fraction form
    40,215.90/55,497.96 = 22,311.12/x
  3. Step 3: Cross multiply
    40,215.90x = 55,497.96 × 22,311.12
  4. Step 4: Simplify right side
    40,215.90x = 1,238,221,645.32
  5. Step 5: Solve for x
    x = 1,238,221,645.32/40,215.90
  6. Step 6: Final answer
    x = 30,789.36

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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.