Home / 35,249.42-48,639.70-20,143.06

Finding the Fourth Proportional to 35,249.42, 48,639.70 and 20,143.06

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Solution

The fourth proportional to 35,249.42, 48,639.70 and 20,143.06 is: 27,794.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,249.42 : 48,639.70 = 20,143.06 : x
  2. Step 2: Convert to fraction form
    35,249.42/48,639.70 = 20,143.06/x
  3. Step 3: Cross multiply
    35,249.42x = 48,639.70 × 20,143.06
  4. Step 4: Simplify right side
    35,249.42x = 979,752,395.48
  5. Step 5: Solve for x
    x = 979,752,395.48/35,249.42
  6. Step 6: Final answer
    x = 27,794.85

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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.