Home / 40,120.49-55,365.60-22,215.11

Finding the Fourth Proportional to 40,120.49, 55,365.60 and 22,215.11

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Solution

The fourth proportional to 40,120.49, 55,365.60 and 22,215.11 is: 30,656.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,120.49 : 55,365.60 = 22,215.11 : x
  2. Step 2: Convert to fraction form
    40,120.49/55,365.60 = 22,215.11/x
  3. Step 3: Cross multiply
    40,120.49x = 55,365.60 × 22,215.11
  4. Step 4: Simplify right side
    40,120.49x = 1,229,952,739.14
  5. Step 5: Solve for x
    x = 1,229,952,739.14/40,120.49
  6. Step 6: Final answer
    x = 30,656.48

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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.