Home / 40,122.66-55,372.36-22,219.32

Finding the Fourth Proportional to 40,122.66, 55,372.36 and 22,219.32

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Solution

The fourth proportional to 40,122.66, 55,372.36 and 22,219.32 is: 30,664.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,122.66 : 55,372.36 = 22,219.32 : x
  2. Step 2: Convert to fraction form
    40,122.66/55,372.36 = 22,219.32/x
  3. Step 3: Cross multiply
    40,122.66x = 55,372.36 × 22,219.32
  4. Step 4: Simplify right side
    40,122.66x = 1,230,336,186.00
  5. Step 5: Solve for x
    x = 1,230,336,186.00/40,122.66
  6. Step 6: Final answer
    x = 30,664.37

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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.