Home / 29,121.15-43,690.95-10,400.79

Finding the Fourth Proportional to 29,121.15, 43,690.95 and 10,400.79

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Solution

The fourth proportional to 29,121.15, 43,690.95 and 10,400.79 is: 15,604.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,121.15 : 43,690.95 = 10,400.79 : x
  2. Step 2: Convert to fraction form
    29,121.15/43,690.95 = 10,400.79/x
  3. Step 3: Cross multiply
    29,121.15x = 43,690.95 × 10,400.79
  4. Step 4: Simplify right side
    29,121.15x = 454,420,395.85
  5. Step 5: Solve for x
    x = 454,420,395.85/29,121.15
  6. Step 6: Final answer
    x = 15,604.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.