Home / 40,163.69-55,431.87-23,164.76

Finding the Fourth Proportional to 40,163.69, 55,431.87 and 23,164.76

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Solution

The fourth proportional to 40,163.69, 55,431.87 and 23,164.76 is: 31,970.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,163.69 : 55,431.87 = 23,164.76 : x
  2. Step 2: Convert to fraction form
    40,163.69/55,431.87 = 23,164.76/x
  3. Step 3: Cross multiply
    40,163.69x = 55,431.87 × 23,164.76
  4. Step 4: Simplify right side
    40,163.69x = 1,284,065,964.90
  5. Step 5: Solve for x
    x = 1,284,065,964.90/40,163.69
  6. Step 6: Final answer
    x = 31,970.82

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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.