Home / 30,120.23-41,566.16-16,691.70

Finding the Fourth Proportional to 30,120.23, 41,566.16 and 16,691.70

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Solution

The fourth proportional to 30,120.23, 41,566.16 and 16,691.70 is: 23,034.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,120.23 : 41,566.16 = 16,691.70 : x
  2. Step 2: Convert to fraction form
    30,120.23/41,566.16 = 16,691.70/x
  3. Step 3: Cross multiply
    30,120.23x = 41,566.16 × 16,691.70
  4. Step 4: Simplify right side
    30,120.23x = 693,809,789.41
  5. Step 5: Solve for x
    x = 693,809,789.41/30,120.23
  6. Step 6: Final answer
    x = 23,034.68

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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.