Home / 20,539.72-30,811.11-5,748.45

Finding the Fourth Proportional to 20,539.72, 30,811.11 and 5,748.45

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Solution

The fourth proportional to 20,539.72, 30,811.11 and 5,748.45 is: 8,623.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,539.72 : 30,811.11 = 5,748.45 : x
  2. Step 2: Convert to fraction form
    20,539.72/30,811.11 = 5,748.45/x
  3. Step 3: Cross multiply
    20,539.72x = 30,811.11 × 5,748.45
  4. Step 4: Simplify right side
    20,539.72x = 177,116,125.28
  5. Step 5: Solve for x
    x = 177,116,125.28/20,539.72
  6. Step 6: Final answer
    x = 8,623.10

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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.