Home / 22,581.90-31,164.12-13,629.24

Finding the Fourth Proportional to 22,581.90, 31,164.12 and 13,629.24

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Solution

The fourth proportional to 22,581.90, 31,164.12 and 13,629.24 is: 18,809.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,581.90 : 31,164.12 = 13,629.24 : x
  2. Step 2: Convert to fraction form
    22,581.90/31,164.12 = 13,629.24/x
  3. Step 3: Cross multiply
    22,581.90x = 31,164.12 × 13,629.24
  4. Step 4: Simplify right side
    22,581.90x = 424,743,270.87
  5. Step 5: Solve for x
    x = 424,743,270.87/22,581.90
  6. Step 6: Final answer
    x = 18,809.01

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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.