Home / 31,027.11-42,817.59-16,879.92

Finding the Fourth Proportional to 31,027.11, 42,817.59 and 16,879.92

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Solution

The fourth proportional to 31,027.11, 42,817.59 and 16,879.92 is: 23,294.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,027.11 : 42,817.59 = 16,879.92 : x
  2. Step 2: Convert to fraction form
    31,027.11/42,817.59 = 16,879.92/x
  3. Step 3: Cross multiply
    31,027.11x = 42,817.59 × 16,879.92
  4. Step 4: Simplify right side
    31,027.11x = 722,757,493.79
  5. Step 5: Solve for x
    x = 722,757,493.79/31,027.11
  6. Step 6: Final answer
    x = 23,294.39

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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.