Home / 22,791.97-31,453.02-12,720.25

Finding the Fourth Proportional to 22,791.97, 31,453.02 and 12,720.25

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Solution

The fourth proportional to 22,791.97, 31,453.02 and 12,720.25 is: 17,554.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,791.97 : 31,453.02 = 12,720.25 : x
  2. Step 2: Convert to fraction form
    22,791.97/31,453.02 = 12,720.25/x
  3. Step 3: Cross multiply
    22,791.97x = 31,453.02 × 12,720.25
  4. Step 4: Simplify right side
    22,791.97x = 400,090,277.66
  5. Step 5: Solve for x
    x = 400,090,277.66/22,791.97
  6. Step 6: Final answer
    x = 17,554.00

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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.