Home / 39,792.66-54,915.24-21,888.42

Finding the Fourth Proportional to 39,792.66, 54,915.24 and 21,888.42

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Solution

The fourth proportional to 39,792.66, 54,915.24 and 21,888.42 is: 30,206.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,792.66 : 54,915.24 = 21,888.42 : x
  2. Step 2: Convert to fraction form
    39,792.66/54,915.24 = 21,888.42/x
  3. Step 3: Cross multiply
    39,792.66x = 54,915.24 × 21,888.42
  4. Step 4: Simplify right side
    39,792.66x = 1,202,007,837.52
  5. Step 5: Solve for x
    x = 1,202,007,837.52/39,792.66
  6. Step 6: Final answer
    x = 30,206.77

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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.