Home / 30,280.25-45,418.55-11,301.21

Finding the Fourth Proportional to 30,280.25, 45,418.55 and 11,301.21

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Solution

The fourth proportional to 30,280.25, 45,418.55 and 11,301.21 is: 16,951.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,280.25 : 45,418.55 = 11,301.21 : x
  2. Step 2: Convert to fraction form
    30,280.25/45,418.55 = 11,301.21/x
  3. Step 3: Cross multiply
    30,280.25x = 45,418.55 × 11,301.21
  4. Step 4: Simplify right side
    30,280.25x = 513,284,514.94
  5. Step 5: Solve for x
    x = 513,284,514.94/30,280.25
  6. Step 6: Final answer
    x = 16,951.13

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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.