Home / 40,141.07-55,395.60-21,993.53

Finding the Fourth Proportional to 40,141.07, 55,395.60 and 21,993.53

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Solution

The fourth proportional to 40,141.07, 55,395.60 and 21,993.53 is: 30,351.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,141.07 : 55,395.60 = 21,993.53 : x
  2. Step 2: Convert to fraction form
    40,141.07/55,395.60 = 21,993.53/x
  3. Step 3: Cross multiply
    40,141.07x = 55,395.60 × 21,993.53
  4. Step 4: Simplify right side
    40,141.07x = 1,218,344,431.01
  5. Step 5: Solve for x
    x = 1,218,344,431.01/40,141.07
  6. Step 6: Final answer
    x = 30,351.57

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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.