Home / 29,083.11-40,128.46-16,978.09

Finding the Fourth Proportional to 29,083.11, 40,128.46 and 16,978.09

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Solution

The fourth proportional to 29,083.11, 40,128.46 and 16,978.09 is: 23,426.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,083.11 : 40,128.46 = 16,978.09 : x
  2. Step 2: Convert to fraction form
    29,083.11/40,128.46 = 16,978.09/x
  3. Step 3: Cross multiply
    29,083.11x = 40,128.46 × 16,978.09
  4. Step 4: Simplify right side
    29,083.11x = 681,304,520.55
  5. Step 5: Solve for x
    x = 681,304,520.55/29,083.11
  6. Step 6: Final answer
    x = 23,426.13

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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.