Home / 20,476.72-30,713.58-7,994.38

Finding the Fourth Proportional to 20,476.72, 30,713.58 and 7,994.38

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Solution

The fourth proportional to 20,476.72, 30,713.58 and 7,994.38 is: 11,990.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,476.72 : 30,713.58 = 7,994.38 : x
  2. Step 2: Convert to fraction form
    20,476.72/30,713.58 = 7,994.38/x
  3. Step 3: Cross multiply
    20,476.72x = 30,713.58 × 7,994.38
  4. Step 4: Simplify right side
    20,476.72x = 245,536,029.68
  5. Step 5: Solve for x
    x = 245,536,029.68/20,476.72
  6. Step 6: Final answer
    x = 11,990.98

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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.