Home / 30,212.70-41,691.74-16,783.18

Finding the Fourth Proportional to 30,212.70, 41,691.74 and 16,783.18

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Solution

The fourth proportional to 30,212.70, 41,691.74 and 16,783.18 is: 23,159.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,212.70 : 41,691.74 = 16,783.18 : x
  2. Step 2: Convert to fraction form
    30,212.70/41,691.74 = 16,783.18/x
  3. Step 3: Cross multiply
    30,212.70x = 41,691.74 × 16,783.18
  4. Step 4: Simplify right side
    30,212.70x = 699,719,976.93
  5. Step 5: Solve for x
    x = 699,719,976.93/30,212.70
  6. Step 6: Final answer
    x = 23,159.80

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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.