Home / 21,468.83-29,626.97-13,085.33

Finding the Fourth Proportional to 21,468.83, 29,626.97 and 13,085.33

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Solution

The fourth proportional to 21,468.83, 29,626.97 and 13,085.33 is: 18,057.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,468.83 : 29,626.97 = 13,085.33 : x
  2. Step 2: Convert to fraction form
    21,468.83/29,626.97 = 13,085.33/x
  3. Step 3: Cross multiply
    21,468.83x = 29,626.97 × 13,085.33
  4. Step 4: Simplify right side
    21,468.83x = 387,678,786.13
  5. Step 5: Solve for x
    x = 387,678,786.13/21,468.83
  6. Step 6: Final answer
    x = 18,057.75

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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.