Home / 20,568.98-30,847.07-7,419.63

Finding the Fourth Proportional to 20,568.98, 30,847.07 and 7,419.63

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Solution

The fourth proportional to 20,568.98, 30,847.07 and 7,419.63 is: 11,127.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,568.98 : 30,847.07 = 7,419.63 : x
  2. Step 2: Convert to fraction form
    20,568.98/30,847.07 = 7,419.63/x
  3. Step 3: Cross multiply
    20,568.98x = 30,847.07 × 7,419.63
  4. Step 4: Simplify right side
    20,568.98x = 228,873,808.89
  5. Step 5: Solve for x
    x = 228,873,808.89/20,568.98
  6. Step 6: Final answer
    x = 11,127.14

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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.