Home / 31,454.80-43,408.10-18,027.23

Finding the Fourth Proportional to 31,454.80, 43,408.10 and 18,027.23

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Solution

The fourth proportional to 31,454.80, 43,408.10 and 18,027.23 is: 24,877.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,454.80 : 43,408.10 = 18,027.23 : x
  2. Step 2: Convert to fraction form
    31,454.80/43,408.10 = 18,027.23/x
  3. Step 3: Cross multiply
    31,454.80x = 43,408.10 × 18,027.23
  4. Step 4: Simplify right side
    31,454.80x = 782,527,630.59
  5. Step 5: Solve for x
    x = 782,527,630.59/31,454.80
  6. Step 6: Final answer
    x = 24,877.85

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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.