Home / 30,216.11-45,317.30-11,489.49

Finding the Fourth Proportional to 30,216.11, 45,317.30 and 11,489.49

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Solution

The fourth proportional to 30,216.11, 45,317.30 and 11,489.49 is: 17,231.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,216.11 : 45,317.30 = 11,489.49 : x
  2. Step 2: Convert to fraction form
    30,216.11/45,317.30 = 11,489.49/x
  3. Step 3: Cross multiply
    30,216.11x = 45,317.30 × 11,489.49
  4. Step 4: Simplify right side
    30,216.11x = 520,672,665.18
  5. Step 5: Solve for x
    x = 520,672,665.18/30,216.11
  6. Step 6: Final answer
    x = 17,231.62

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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.