Home / 18,670.20-27,976.14-15,885.42

Finding the Fourth Proportional to 18,670.20, 27,976.14 and 15,885.42

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Solution

The fourth proportional to 18,670.20, 27,976.14 and 15,885.42 is: 23,803.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,670.20 : 27,976.14 = 15,885.42 : x
  2. Step 2: Convert to fraction form
    18,670.20/27,976.14 = 15,885.42/x
  3. Step 3: Cross multiply
    18,670.20x = 27,976.14 × 15,885.42
  4. Step 4: Simplify right side
    18,670.20x = 444,412,654.45
  5. Step 5: Solve for x
    x = 444,412,654.45/18,670.20
  6. Step 6: Final answer
    x = 23,803.32

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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.