Home / 29,017.45-40,029.34-18,951.78

Finding the Fourth Proportional to 29,017.45, 40,029.34 and 18,951.78

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Solution

The fourth proportional to 29,017.45, 40,029.34 and 18,951.78 is: 26,143.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,017.45 : 40,029.34 = 18,951.78 : x
  2. Step 2: Convert to fraction form
    29,017.45/40,029.34 = 18,951.78/x
  3. Step 3: Cross multiply
    29,017.45x = 40,029.34 × 18,951.78
  4. Step 4: Simplify right side
    29,017.45x = 758,627,050.39
  5. Step 5: Solve for x
    x = 758,627,050.39/29,017.45
  6. Step 6: Final answer
    x = 26,143.83

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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.