Home / 20,495.04-30,800.34-12,176.52

Finding the Fourth Proportional to 20,495.04, 30,800.34 and 12,176.52

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Solution

The fourth proportional to 20,495.04, 30,800.34 and 12,176.52 is: 18,299.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,495.04 : 30,800.34 = 12,176.52 : x
  2. Step 2: Convert to fraction form
    20,495.04/30,800.34 = 12,176.52/x
  3. Step 3: Cross multiply
    20,495.04x = 30,800.34 × 12,176.52
  4. Step 4: Simplify right side
    20,495.04x = 375,040,956.02
  5. Step 5: Solve for x
    x = 375,040,956.02/20,495.04
  6. Step 6: Final answer
    x = 18,299.11

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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.