Home / 39,921.57-55,089.90-22,914

Finding the Fourth Proportional to 39,921.57, 55,089.90 and 22,914

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Solution

The fourth proportional to 39,921.57, 55,089.90 and 22,914 is: 31,620.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,921.57 : 55,089.90 = 22,914 : x
  2. Step 2: Convert to fraction form
    39,921.57/55,089.90 = 22,914/x
  3. Step 3: Cross multiply
    39,921.57x = 55,089.90 × 22,914
  4. Step 4: Simplify right side
    39,921.57x = 1,262,329,968.60
  5. Step 5: Solve for x
    x = 1,262,329,968.60/39,921.57
  6. Step 6: Final answer
    x = 31,620.25

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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.