Home / 19,989.05-29,908.24-11,954.05

Finding the Fourth Proportional to 19,989.05, 29,908.24 and 11,954.05

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Solution

The fourth proportional to 19,989.05, 29,908.24 and 11,954.05 is: 17,886.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,989.05 : 29,908.24 = 11,954.05 : x
  2. Step 2: Convert to fraction form
    19,989.05/29,908.24 = 11,954.05/x
  3. Step 3: Cross multiply
    19,989.05x = 29,908.24 × 11,954.05
  4. Step 4: Simplify right side
    19,989.05x = 357,524,491.72
  5. Step 5: Solve for x
    x = 357,524,491.72/19,989.05
  6. Step 6: Final answer
    x = 17,886.02

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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.