Home / 20,935.97-28,893.00-12,983.49

Finding the Fourth Proportional to 20,935.97, 28,893.00 and 12,983.49

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Solution

The fourth proportional to 20,935.97, 28,893.00 and 12,983.49 is: 17,918.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,935.97 : 28,893.00 = 12,983.49 : x
  2. Step 2: Convert to fraction form
    20,935.97/28,893.00 = 12,983.49/x
  3. Step 3: Cross multiply
    20,935.97x = 28,893.00 × 12,983.49
  4. Step 4: Simplify right side
    20,935.97x = 375,132,025.26
  5. Step 5: Solve for x
    x = 375,132,025.26/20,935.97
  6. Step 6: Final answer
    x = 17,918.06

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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.