Home / 30,211.26-41,691.59-16,782.15

Finding the Fourth Proportional to 30,211.26, 41,691.59 and 16,782.15

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Solution

The fourth proportional to 30,211.26, 41,691.59 and 16,782.15 is: 23,159.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,211.26 : 41,691.59 = 16,782.15 : x
  2. Step 2: Convert to fraction form
    30,211.26/41,691.59 = 16,782.15/x
  3. Step 3: Cross multiply
    30,211.26x = 41,691.59 × 16,782.15
  4. Step 4: Simplify right side
    30,211.26x = 699,674,433.21
  5. Step 5: Solve for x
    x = 699,674,433.21/30,211.26
  6. Step 6: Final answer
    x = 23,159.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.