Home / 30,217.11-45,318.80-11,490.49

Finding the Fourth Proportional to 30,217.11, 45,318.80 and 11,490.49

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Solution

The fourth proportional to 30,217.11, 45,318.80 and 11,490.49 is: 17,233.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,217.11 : 45,318.80 = 11,490.49 : x
  2. Step 2: Convert to fraction form
    30,217.11/45,318.80 = 11,490.49/x
  3. Step 3: Cross multiply
    30,217.11x = 45,318.80 × 11,490.49
  4. Step 4: Simplify right side
    30,217.11x = 520,735,218.21
  5. Step 5: Solve for x
    x = 520,735,218.21/30,217.11
  6. Step 6: Final answer
    x = 17,233.12

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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.