Home / 30,876.29-42,609.41-16,729.13

Finding the Fourth Proportional to 30,876.29, 42,609.41 and 16,729.13

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Solution

The fourth proportional to 30,876.29, 42,609.41 and 16,729.13 is: 23,086.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,876.29 : 42,609.41 = 16,729.13 : x
  2. Step 2: Convert to fraction form
    30,876.29/42,609.41 = 16,729.13/x
  3. Step 3: Cross multiply
    30,876.29x = 42,609.41 × 16,729.13
  4. Step 4: Simplify right side
    30,876.29x = 712,818,062.42
  5. Step 5: Solve for x
    x = 712,818,062.42/30,876.29
  6. Step 6: Final answer
    x = 23,086.26

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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.