Home / 20,574.24-30,861.27-4,992

Finding the Fourth Proportional to 20,574.24, 30,861.27 and 4,992

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Solution

The fourth proportional to 20,574.24, 30,861.27 and 4,992 is: 7,487.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,574.24 : 30,861.27 = 4,992 : x
  2. Step 2: Convert to fraction form
    20,574.24/30,861.27 = 4,992/x
  3. Step 3: Cross multiply
    20,574.24x = 30,861.27 × 4,992
  4. Step 4: Simplify right side
    20,574.24x = 154,059,459.84
  5. Step 5: Solve for x
    x = 154,059,459.84/20,574.24
  6. Step 6: Final answer
    x = 7,487.98

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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.