Home / 30,104.20-45,181.90-13,489.80

Finding the Fourth Proportional to 30,104.20, 45,181.90 and 13,489.80

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Solution

The fourth proportional to 30,104.20, 45,181.90 and 13,489.80 is: 20,246.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,104.20 : 45,181.90 = 13,489.80 : x
  2. Step 2: Convert to fraction form
    30,104.20/45,181.90 = 13,489.80/x
  3. Step 3: Cross multiply
    30,104.20x = 45,181.90 × 13,489.80
  4. Step 4: Simplify right side
    30,104.20x = 609,494,794.62
  5. Step 5: Solve for x
    x = 609,494,794.62/30,104.20
  6. Step 6: Final answer
    x = 20,246.17

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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.