Home / 20,215.10-30,326.73-8,528.30

Finding the Fourth Proportional to 20,215.10, 30,326.73 and 8,528.30

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Solution

The fourth proportional to 20,215.10, 30,326.73 and 8,528.30 is: 12,794.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,215.10 : 30,326.73 = 8,528.30 : x
  2. Step 2: Convert to fraction form
    20,215.10/30,326.73 = 8,528.30/x
  3. Step 3: Cross multiply
    20,215.10x = 30,326.73 × 8,528.30
  4. Step 4: Simplify right side
    20,215.10x = 258,635,451.46
  5. Step 5: Solve for x
    x = 258,635,451.46/20,215.10
  6. Step 6: Final answer
    x = 12,794.17

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.