Home / 39,625.65-54,683.15-21,721.77

Finding the Fourth Proportional to 39,625.65, 54,683.15 and 21,721.77

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Solution

The fourth proportional to 39,625.65, 54,683.15 and 21,721.77 is: 29,975.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,625.65 : 54,683.15 = 21,721.77 : x
  2. Step 2: Convert to fraction form
    39,625.65/54,683.15 = 21,721.77/x
  3. Step 3: Cross multiply
    39,625.65x = 54,683.15 × 21,721.77
  4. Step 4: Simplify right side
    39,625.65x = 1,187,814,698.57
  5. Step 5: Solve for x
    x = 1,187,814,698.57/39,625.65
  6. Step 6: Final answer
    x = 29,975.90

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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.