Home / 39,906.36-55,075.50-23,139.96

Finding the Fourth Proportional to 39,906.36, 55,075.50 and 23,139.96

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Solution

The fourth proportional to 39,906.36, 55,075.50 and 23,139.96 is: 31,935.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,906.36 : 55,075.50 = 23,139.96 : x
  2. Step 2: Convert to fraction form
    39,906.36/55,075.50 = 23,139.96/x
  3. Step 3: Cross multiply
    39,906.36x = 55,075.50 × 23,139.96
  4. Step 4: Simplify right side
    39,906.36x = 1,274,444,866.98
  5. Step 5: Solve for x
    x = 1,274,444,866.98/39,906.36
  6. Step 6: Final answer
    x = 31,935.88

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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.