Home / 30,000.18-41,387.18-18,056.73

Finding the Fourth Proportional to 30,000.18, 41,387.18 and 18,056.73

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Solution

The fourth proportional to 30,000.18, 41,387.18 and 18,056.73 is: 24,910.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,000.18 : 41,387.18 = 18,056.73 : x
  2. Step 2: Convert to fraction form
    30,000.18/41,387.18 = 18,056.73/x
  3. Step 3: Cross multiply
    30,000.18x = 41,387.18 × 18,056.73
  4. Step 4: Simplify right side
    30,000.18x = 747,317,044.44
  5. Step 5: Solve for x
    x = 747,317,044.44/30,000.18
  6. Step 6: Final answer
    x = 24,910.42

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Half scale
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Double scale
Find fourth proportional to 30,001.18, 41,388.55 and 18,057.73
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.