Home / 22,537.90-31,109.69-15,825.20

Finding the Fourth Proportional to 22,537.90, 31,109.69 and 15,825.20

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Solution

The fourth proportional to 22,537.90, 31,109.69 and 15,825.20 is: 21,843.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,537.90 : 31,109.69 = 15,825.20 : x
  2. Step 2: Convert to fraction form
    22,537.90/31,109.69 = 15,825.20/x
  3. Step 3: Cross multiply
    22,537.90x = 31,109.69 × 15,825.20
  4. Step 4: Simplify right side
    22,537.90x = 492,317,183.53
  5. Step 5: Solve for x
    x = 492,317,183.53/22,537.90
  6. Step 6: Final answer
    x = 21,843.97

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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.