Home / 30,654.85-45,982.28-12,186.85

Finding the Fourth Proportional to 30,654.85, 45,982.28 and 12,186.85

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Solution

The fourth proportional to 30,654.85, 45,982.28 and 12,186.85 is: 18,280.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,654.85 : 45,982.28 = 12,186.85 : x
  2. Step 2: Convert to fraction form
    30,654.85/45,982.28 = 12,186.85/x
  3. Step 3: Cross multiply
    30,654.85x = 45,982.28 × 12,186.85
  4. Step 4: Simplify right side
    30,654.85x = 560,379,088.08
  5. Step 5: Solve for x
    x = 560,379,088.08/30,654.85
  6. Step 6: Final answer
    x = 18,280.28

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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.