Home / 31,441.50-43,378.68-21,352.44

Finding the Fourth Proportional to 31,441.50, 43,378.68 and 21,352.44

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Solution

The fourth proportional to 31,441.50, 43,378.68 and 21,352.44 is: 29,459.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,441.50 : 43,378.68 = 21,352.44 : x
  2. Step 2: Convert to fraction form
    31,441.50/43,378.68 = 21,352.44/x
  3. Step 3: Cross multiply
    31,441.50x = 43,378.68 × 21,352.44
  4. Step 4: Simplify right side
    31,441.50x = 926,240,661.98
  5. Step 5: Solve for x
    x = 926,240,661.98/31,441.50
  6. Step 6: Final answer
    x = 29,459.18

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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.