Home / 17,220.97-25,781.29-12,798.27

Finding the Fourth Proportional to 17,220.97, 25,781.29 and 12,798.27

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Solution

The fourth proportional to 17,220.97, 25,781.29 and 12,798.27 is: 19,160.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,220.97 : 25,781.29 = 12,798.27 : x
  2. Step 2: Convert to fraction form
    17,220.97/25,781.29 = 12,798.27/x
  3. Step 3: Cross multiply
    17,220.97x = 25,781.29 × 12,798.27
  4. Step 4: Simplify right side
    17,220.97x = 329,955,878.37
  5. Step 5: Solve for x
    x = 329,955,878.37/17,220.97
  6. Step 6: Final answer
    x = 19,160.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.