Home / 19,960.38-29,832.28-18,384.12

Finding the Fourth Proportional to 19,960.38, 29,832.28 and 18,384.12

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Solution

The fourth proportional to 19,960.38, 29,832.28 and 18,384.12 is: 27,476.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,960.38 : 29,832.28 = 18,384.12 : x
  2. Step 2: Convert to fraction form
    19,960.38/29,832.28 = 18,384.12/x
  3. Step 3: Cross multiply
    19,960.38x = 29,832.28 × 18,384.12
  4. Step 4: Simplify right side
    19,960.38x = 548,440,169.43
  5. Step 5: Solve for x
    x = 548,440,169.43/19,960.38
  6. Step 6: Final answer
    x = 27,476.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.