Home / 40,150.78-55,408.52-22,246.06

Finding the Fourth Proportional to 40,150.78, 55,408.52 and 22,246.06

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Solution

The fourth proportional to 40,150.78, 55,408.52 and 22,246.06 is: 30,699.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,150.78 : 55,408.52 = 22,246.06 : x
  2. Step 2: Convert to fraction form
    40,150.78/55,408.52 = 22,246.06/x
  3. Step 3: Cross multiply
    40,150.78x = 55,408.52 × 22,246.06
  4. Step 4: Simplify right side
    40,150.78x = 1,232,621,260.43
  5. Step 5: Solve for x
    x = 1,232,621,260.43/40,150.78
  6. Step 6: Final answer
    x = 30,699.81

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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.