Home / 30,876.33-42,609.35-16,729.18

Finding the Fourth Proportional to 30,876.33, 42,609.35 and 16,729.18

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Solution

The fourth proportional to 30,876.33, 42,609.35 and 16,729.18 is: 23,086.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,876.33 : 42,609.35 = 16,729.18 : x
  2. Step 2: Convert to fraction form
    30,876.33/42,609.35 = 16,729.18/x
  3. Step 3: Cross multiply
    30,876.33x = 42,609.35 × 16,729.18
  4. Step 4: Simplify right side
    30,876.33x = 712,819,295.66
  5. Step 5: Solve for x
    x = 712,819,295.66/30,876.33
  6. Step 6: Final answer
    x = 23,086.27

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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.