Home / 40,114.14-55,355.32-21,961.35

Finding the Fourth Proportional to 40,114.14, 55,355.32 and 21,961.35

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Solution

The fourth proportional to 40,114.14, 55,355.32 and 21,961.35 is: 30,305.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,114.14 : 55,355.32 = 21,961.35 : x
  2. Step 2: Convert to fraction form
    40,114.14/55,355.32 = 21,961.35/x
  3. Step 3: Cross multiply
    40,114.14x = 55,355.32 × 21,961.35
  4. Step 4: Simplify right side
    40,114.14x = 1,215,677,556.88
  5. Step 5: Solve for x
    x = 1,215,677,556.88/40,114.14
  6. Step 6: Final answer
    x = 30,305.46

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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.