Home / 20,581.76-30,869.41-6,539.94

Finding the Fourth Proportional to 20,581.76, 30,869.41 and 6,539.94

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Solution

The fourth proportional to 20,581.76, 30,869.41 and 6,539.94 is: 9,808.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,581.76 : 30,869.41 = 6,539.94 : x
  2. Step 2: Convert to fraction form
    20,581.76/30,869.41 = 6,539.94/x
  3. Step 3: Cross multiply
    20,581.76x = 30,869.41 × 6,539.94
  4. Step 4: Simplify right side
    20,581.76x = 201,884,089.24
  5. Step 5: Solve for x
    x = 201,884,089.24/20,581.76
  6. Step 6: Final answer
    x = 9,808.88

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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.