Home / 31,863.63-43,966.88-18,436.14

Finding the Fourth Proportional to 31,863.63, 43,966.88 and 18,436.14

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Solution

The fourth proportional to 31,863.63, 43,966.88 and 18,436.14 is: 25,439.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,863.63 : 43,966.88 = 18,436.14 : x
  2. Step 2: Convert to fraction form
    31,863.63/43,966.88 = 18,436.14/x
  3. Step 3: Cross multiply
    31,863.63x = 43,966.88 × 18,436.14
  4. Step 4: Simplify right side
    31,863.63x = 810,579,491.22
  5. Step 5: Solve for x
    x = 810,579,491.22/31,863.63
  6. Step 6: Final answer
    x = 25,439.02

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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.