Home / 39,122.74-58,662.87-13,809.58

Finding the Fourth Proportional to 39,122.74, 58,662.87 and 13,809.58

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Solution

The fourth proportional to 39,122.74, 58,662.87 and 13,809.58 is: 20,706.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,122.74 : 58,662.87 = 13,809.58 : x
  2. Step 2: Convert to fraction form
    39,122.74/58,662.87 = 13,809.58/x
  3. Step 3: Cross multiply
    39,122.74x = 58,662.87 × 13,809.58
  4. Step 4: Simplify right side
    39,122.74x = 810,109,596.29
  5. Step 5: Solve for x
    x = 810,109,596.29/39,122.74
  6. Step 6: Final answer
    x = 20,706.87

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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.