Home / 29,006.88-40,015.26-18,930.66

Finding the Fourth Proportional to 29,006.88, 40,015.26 and 18,930.66

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Solution

The fourth proportional to 29,006.88, 40,015.26 and 18,930.66 is: 26,115.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,006.88 : 40,015.26 = 18,930.66 : x
  2. Step 2: Convert to fraction form
    29,006.88/40,015.26 = 18,930.66/x
  3. Step 3: Cross multiply
    29,006.88x = 40,015.26 × 18,930.66
  4. Step 4: Simplify right side
    29,006.88x = 757,515,281.87
  5. Step 5: Solve for x
    x = 757,515,281.87/29,006.88
  6. Step 6: Final answer
    x = 26,115.02

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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.