Home / 39,821.62-54,952.66-21,916.62

Finding the Fourth Proportional to 39,821.62, 54,952.66 and 21,916.62

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Solution

The fourth proportional to 39,821.62, 54,952.66 and 21,916.62 is: 30,244.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,821.62 : 54,952.66 = 21,916.62 : x
  2. Step 2: Convert to fraction form
    39,821.62/54,952.66 = 21,916.62/x
  3. Step 3: Cross multiply
    39,821.62x = 54,952.66 × 21,916.62
  4. Step 4: Simplify right side
    39,821.62x = 1,204,376,567.21
  5. Step 5: Solve for x
    x = 1,204,376,567.21/39,821.62
  6. Step 6: Final answer
    x = 30,244.29

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1.5x scale

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.