Home / 39,474.98-54,479.16-21,572.62

Finding the Fourth Proportional to 39,474.98, 54,479.16 and 21,572.62

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Solution

The fourth proportional to 39,474.98, 54,479.16 and 21,572.62 is: 29,772.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,474.98 : 54,479.16 = 21,572.62 : x
  2. Step 2: Convert to fraction form
    39,474.98/54,479.16 = 21,572.62/x
  3. Step 3: Cross multiply
    39,474.98x = 54,479.16 × 21,572.62
  4. Step 4: Simplify right side
    39,474.98x = 1,175,258,216.60
  5. Step 5: Solve for x
    x = 1,175,258,216.60/39,474.98
  6. Step 6: Final answer
    x = 29,772.23

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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.