Home / 40,109.32-55,350-22,203.28

Finding the Fourth Proportional to 40,109.32, 55,350 and 22,203.28

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Solution

The fourth proportional to 40,109.32, 55,350 and 22,203.28 is: 30,640.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,109.32 : 55,350 = 22,203.28 : x
  2. Step 2: Convert to fraction form
    40,109.32/55,350 = 22,203.28/x
  3. Step 3: Cross multiply
    40,109.32x = 55,350 × 22,203.28
  4. Step 4: Simplify right side
    40,109.32x = 1,228,951,548
  5. Step 5: Solve for x
    x = 1,228,951,548/40,109.32
  6. Step 6: Final answer
    x = 30,640.05

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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.