Home / 19,961.42-29,931.68-5,919.51

Finding the Fourth Proportional to 19,961.42, 29,931.68 and 5,919.51

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Solution

The fourth proportional to 19,961.42, 29,931.68 and 5,919.51 is: 8,876.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,961.42 : 29,931.68 = 5,919.51 : x
  2. Step 2: Convert to fraction form
    19,961.42/29,931.68 = 5,919.51/x
  3. Step 3: Cross multiply
    19,961.42x = 29,931.68 × 5,919.51
  4. Step 4: Simplify right side
    19,961.42x = 177,180,879.08
  5. Step 5: Solve for x
    x = 177,180,879.08/19,961.42
  6. Step 6: Final answer
    x = 8,876.17

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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.