Home / 19,996.28-29,864.76-18,118.42

Finding the Fourth Proportional to 19,996.28, 29,864.76 and 18,118.42

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Solution

The fourth proportional to 19,996.28, 29,864.76 and 18,118.42 is: 27,060.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,996.28 : 29,864.76 = 18,118.42 : x
  2. Step 2: Convert to fraction form
    19,996.28/29,864.76 = 18,118.42/x
  3. Step 3: Cross multiply
    19,996.28x = 29,864.76 × 18,118.42
  4. Step 4: Simplify right side
    19,996.28x = 541,102,264.88
  5. Step 5: Solve for x
    x = 541,102,264.88/19,996.28
  6. Step 6: Final answer
    x = 27,060.15

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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.