Home / 21,244.25-29,324.36-12,860.75

Finding the Fourth Proportional to 21,244.25, 29,324.36 and 12,860.75

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Solution

The fourth proportional to 21,244.25, 29,324.36 and 12,860.75 is: 17,752.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,244.25 : 29,324.36 = 12,860.75 : x
  2. Step 2: Convert to fraction form
    21,244.25/29,324.36 = 12,860.75/x
  3. Step 3: Cross multiply
    21,244.25x = 29,324.36 × 12,860.75
  4. Step 4: Simplify right side
    21,244.25x = 377,133,262.87
  5. Step 5: Solve for x
    x = 377,133,262.87/21,244.25
  6. Step 6: Final answer
    x = 17,752.25

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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.