Home / 31,371.12-43,298.82-18,803.16

Finding the Fourth Proportional to 31,371.12, 43,298.82 and 18,803.16

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Solution

The fourth proportional to 31,371.12, 43,298.82 and 18,803.16 is: 25,952.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,371.12 : 43,298.82 = 18,803.16 : x
  2. Step 2: Convert to fraction form
    31,371.12/43,298.82 = 18,803.16/x
  3. Step 3: Cross multiply
    31,371.12x = 43,298.82 × 18,803.16
  4. Step 4: Simplify right side
    31,371.12x = 814,154,640.27
  5. Step 5: Solve for x
    x = 814,154,640.27/31,371.12
  6. Step 6: Final answer
    x = 25,952.36

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.