Home / 31,008.38-42,791.22-16,861.19

Finding the Fourth Proportional to 31,008.38, 42,791.22 and 16,861.19

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Solution

The fourth proportional to 31,008.38, 42,791.22 and 16,861.19 is: 23,268.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,008.38 : 42,791.22 = 16,861.19 : x
  2. Step 2: Convert to fraction form
    31,008.38/42,791.22 = 16,861.19/x
  3. Step 3: Cross multiply
    31,008.38x = 42,791.22 × 16,861.19
  4. Step 4: Simplify right side
    31,008.38x = 721,510,676.80
  5. Step 5: Solve for x
    x = 721,510,676.80/31,008.38
  6. Step 6: Final answer
    x = 23,268.25

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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.