Home / 20,994.14-31,500.30-10,474.68

Finding the Fourth Proportional to 20,994.14, 31,500.30 and 10,474.68

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Solution

The fourth proportional to 20,994.14, 31,500.30 and 10,474.68 is: 15,716.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,994.14 : 31,500.30 = 10,474.68 : x
  2. Step 2: Convert to fraction form
    20,994.14/31,500.30 = 10,474.68/x
  3. Step 3: Cross multiply
    20,994.14x = 31,500.30 × 10,474.68
  4. Step 4: Simplify right side
    20,994.14x = 329,955,562.40
  5. Step 5: Solve for x
    x = 329,955,562.40/20,994.14
  6. Step 6: Final answer
    x = 15,716.56

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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.