Home / 30,213.32-45,319.99-11,489.03

Finding the Fourth Proportional to 30,213.32, 45,319.99 and 11,489.03

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Solution

The fourth proportional to 30,213.32, 45,319.99 and 11,489.03 is: 17,233.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,213.32 : 45,319.99 = 11,489.03 : x
  2. Step 2: Convert to fraction form
    30,213.32/45,319.99 = 11,489.03/x
  3. Step 3: Cross multiply
    30,213.32x = 45,319.99 × 11,489.03
  4. Step 4: Simplify right side
    30,213.32x = 520,682,724.71
  5. Step 5: Solve for x
    x = 520,682,724.71/30,213.32
  6. Step 6: Final answer
    x = 17,233.55

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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.