Home / 40,113.14-55,353.94-21,960.35

Finding the Fourth Proportional to 40,113.14, 55,353.94 and 21,960.35

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Solution

The fourth proportional to 40,113.14, 55,353.94 and 21,960.35 is: 30,304.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,113.14 : 55,353.94 = 21,960.35 : x
  2. Step 2: Convert to fraction form
    40,113.14/55,353.94 = 21,960.35/x
  3. Step 3: Cross multiply
    40,113.14x = 55,353.94 × 21,960.35
  4. Step 4: Simplify right side
    40,113.14x = 1,215,591,979.76
  5. Step 5: Solve for x
    x = 1,215,591,979.76/40,113.14
  6. Step 6: Final answer
    x = 30,304.08

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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.