Home / 31,454.05-43,407.78-18,027.89

Finding the Fourth Proportional to 31,454.05, 43,407.78 and 18,027.89

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Solution

The fourth proportional to 31,454.05, 43,407.78 and 18,027.89 is: 24,879.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,454.05 : 43,407.78 = 18,027.89 : x
  2. Step 2: Convert to fraction form
    31,454.05/43,407.78 = 18,027.89/x
  3. Step 3: Cross multiply
    31,454.05x = 43,407.78 × 18,027.89
  4. Step 4: Simplify right side
    31,454.05x = 782,550,682.98
  5. Step 5: Solve for x
    x = 782,550,682.98/31,454.05
  6. Step 6: Final answer
    x = 24,879.17

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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.