Home / 20,152.04-30,234.10-8,138.01

Finding the Fourth Proportional to 20,152.04, 30,234.10 and 8,138.01

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Solution

The fourth proportional to 20,152.04, 30,234.10 and 8,138.01 is: 12,209.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,152.04 : 30,234.10 = 8,138.01 : x
  2. Step 2: Convert to fraction form
    20,152.04/30,234.10 = 8,138.01/x
  3. Step 3: Cross multiply
    20,152.04x = 30,234.10 × 8,138.01
  4. Step 4: Simplify right side
    20,152.04x = 246,045,408.14
  5. Step 5: Solve for x
    x = 246,045,408.14/20,152.04
  6. Step 6: Final answer
    x = 12,209.45

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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.