Home / 20,233.10-30,349.65-12,446.30

Finding the Fourth Proportional to 20,233.10, 30,349.65 and 12,446.30

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Solution

The fourth proportional to 20,233.10, 30,349.65 and 12,446.30 is: 18,669.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,233.10 : 30,349.65 = 12,446.30 : x
  2. Step 2: Convert to fraction form
    20,233.10/30,349.65 = 12,446.30/x
  3. Step 3: Cross multiply
    20,233.10x = 30,349.65 × 12,446.30
  4. Step 4: Simplify right side
    20,233.10x = 377,740,848.80
  5. Step 5: Solve for x
    x = 377,740,848.80/20,233.10
  6. Step 6: Final answer
    x = 18,669.45

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Similar ratio
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1.5x scale

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.