Home / 31,880.16-43,993.26-18,451.98

Finding the Fourth Proportional to 31,880.16, 43,993.26 and 18,451.98

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Solution

The fourth proportional to 31,880.16, 43,993.26 and 18,451.98 is: 25,462.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,880.16 : 43,993.26 = 18,451.98 : x
  2. Step 2: Convert to fraction form
    31,880.16/43,993.26 = 18,451.98/x
  3. Step 3: Cross multiply
    31,880.16x = 43,993.26 × 18,451.98
  4. Step 4: Simplify right side
    31,880.16x = 811,762,753.65
  5. Step 5: Solve for x
    x = 811,762,753.65/31,880.16
  6. Step 6: Final answer
    x = 25,462.94

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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.