Home / 19,991.40-29,981.38-5,950.84

Finding the Fourth Proportional to 19,991.40, 29,981.38 and 5,950.84

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Solution

The fourth proportional to 19,991.40, 29,981.38 and 5,950.84 is: 8,924.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,991.40 : 29,981.38 = 5,950.84 : x
  2. Step 2: Convert to fraction form
    19,991.40/29,981.38 = 5,950.84/x
  3. Step 3: Cross multiply
    19,991.40x = 29,981.38 × 5,950.84
  4. Step 4: Simplify right side
    19,991.40x = 178,414,395.36
  5. Step 5: Solve for x
    x = 178,414,395.36/19,991.40
  6. Step 6: Final answer
    x = 8,924.56

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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.