Home / 40,255.12-55,552.72-22,351.28

Finding the Fourth Proportional to 40,255.12, 55,552.72 and 22,351.28

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Solution

The fourth proportional to 40,255.12, 55,552.72 and 22,351.28 is: 30,845.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,255.12 : 55,552.72 = 22,351.28 : x
  2. Step 2: Convert to fraction form
    40,255.12/55,552.72 = 22,351.28/x
  3. Step 3: Cross multiply
    40,255.12x = 55,552.72 × 22,351.28
  4. Step 4: Simplify right side
    40,255.12x = 1,241,674,399.48
  5. Step 5: Solve for x
    x = 1,241,674,399.48/40,255.12
  6. Step 6: Final answer
    x = 30,845.13

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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.