Home / 31,868.24-43,970.92-18,439.16

Finding the Fourth Proportional to 31,868.24, 43,970.92 and 18,439.16

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Solution

The fourth proportional to 31,868.24, 43,970.92 and 18,439.16 is: 25,441.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,868.24 : 43,970.92 = 18,439.16 : x
  2. Step 2: Convert to fraction form
    31,868.24/43,970.92 = 18,439.16/x
  3. Step 3: Cross multiply
    31,868.24x = 43,970.92 × 18,439.16
  4. Step 4: Simplify right side
    31,868.24x = 810,786,829.23
  5. Step 5: Solve for x
    x = 810,786,829.23/31,868.24
  6. Step 6: Final answer
    x = 25,441.85

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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.