Home / 30,876.66-42,609.92-16,729.52

Finding the Fourth Proportional to 30,876.66, 42,609.92 and 16,729.52

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Solution

The fourth proportional to 30,876.66, 42,609.92 and 16,729.52 is: 23,086.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,876.66 : 42,609.92 = 16,729.52 : x
  2. Step 2: Convert to fraction form
    30,876.66/42,609.92 = 16,729.52/x
  3. Step 3: Cross multiply
    30,876.66x = 42,609.92 × 16,729.52
  4. Step 4: Simplify right side
    30,876.66x = 712,843,212.14
  5. Step 5: Solve for x
    x = 712,843,212.14/30,876.66
  6. Step 6: Final answer
    x = 23,086.80

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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.