Home / 20,335.24-30,505.90-7,187.73

Finding the Fourth Proportional to 20,335.24, 30,505.90 and 7,187.73

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Solution

The fourth proportional to 20,335.24, 30,505.90 and 7,187.73 is: 10,782.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,335.24 : 30,505.90 = 7,187.73 : x
  2. Step 2: Convert to fraction form
    20,335.24/30,505.90 = 7,187.73/x
  3. Step 3: Cross multiply
    20,335.24x = 30,505.90 × 7,187.73
  4. Step 4: Simplify right side
    20,335.24x = 219,268,172.61
  5. Step 5: Solve for x
    x = 219,268,172.61/20,335.24
  6. Step 6: Final answer
    x = 10,782.67

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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.