Home / 40,313.78-55,632.60-22,408.40

Finding the Fourth Proportional to 40,313.78, 55,632.60 and 22,408.40

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Solution

The fourth proportional to 40,313.78, 55,632.60 and 22,408.40 is: 30,923.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,313.78 : 55,632.60 = 22,408.40 : x
  2. Step 2: Convert to fraction form
    40,313.78/55,632.60 = 22,408.40/x
  3. Step 3: Cross multiply
    40,313.78x = 55,632.60 × 22,408.40
  4. Step 4: Simplify right side
    40,313.78x = 1,246,637,316.96
  5. Step 5: Solve for x
    x = 1,246,637,316.96/40,313.78
  6. Step 6: Final answer
    x = 30,923.36

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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.