Home / 31,876.14-43,986.36-18,448.23

Finding the Fourth Proportional to 31,876.14, 43,986.36 and 18,448.23

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Solution

The fourth proportional to 31,876.14, 43,986.36 and 18,448.23 is: 25,456.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,876.14 : 43,986.36 = 18,448.23 : x
  2. Step 2: Convert to fraction form
    31,876.14/43,986.36 = 18,448.23/x
  3. Step 3: Cross multiply
    31,876.14x = 43,986.36 × 18,448.23
  4. Step 4: Simplify right side
    31,876.14x = 811,470,321.19
  5. Step 5: Solve for x
    x = 811,470,321.19/31,876.14
  6. Step 6: Final answer
    x = 25,456.98

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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.