Home / 20,717.40-31,057.26-7,560.60

Finding the Fourth Proportional to 20,717.40, 31,057.26 and 7,560.60

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Solution

The fourth proportional to 20,717.40, 31,057.26 and 7,560.60 is: 11,334.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,717.40 : 31,057.26 = 7,560.60 : x
  2. Step 2: Convert to fraction form
    20,717.40/31,057.26 = 7,560.60/x
  3. Step 3: Cross multiply
    20,717.40x = 31,057.26 × 7,560.60
  4. Step 4: Simplify right side
    20,717.40x = 234,811,519.96
  5. Step 5: Solve for x
    x = 234,811,519.96/20,717.40
  6. Step 6: Final answer
    x = 11,334.02

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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.