Home / 31,190.81-43,043.63-17,043.96

Finding the Fourth Proportional to 31,190.81, 43,043.63 and 17,043.96

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Solution

The fourth proportional to 31,190.81, 43,043.63 and 17,043.96 is: 23,520.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,190.81 : 43,043.63 = 17,043.96 : x
  2. Step 2: Convert to fraction form
    31,190.81/43,043.63 = 17,043.96/x
  3. Step 3: Cross multiply
    31,190.81x = 43,043.63 × 17,043.96
  4. Step 4: Simplify right side
    31,190.81x = 733,633,822.76
  5. Step 5: Solve for x
    x = 733,633,822.76/31,190.81
  6. Step 6: Final answer
    x = 23,520.83

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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.