Home / 40,016.55-59,976.87-18,640.45

Finding the Fourth Proportional to 40,016.55, 59,976.87 and 18,640.45

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Solution

The fourth proportional to 40,016.55, 59,976.87 and 18,640.45 is: 27,938.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,016.55 : 59,976.87 = 18,640.45 : x
  2. Step 2: Convert to fraction form
    40,016.55/59,976.87 = 18,640.45/x
  3. Step 3: Cross multiply
    40,016.55x = 59,976.87 × 18,640.45
  4. Step 4: Simplify right side
    40,016.55x = 1,117,995,846.39
  5. Step 5: Solve for x
    x = 1,117,995,846.39/40,016.55
  6. Step 6: Final answer
    x = 27,938.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.