Home / 31,366.71-43,284.44-18,620.42

Finding the Fourth Proportional to 31,366.71, 43,284.44 and 18,620.42

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Solution

The fourth proportional to 31,366.71, 43,284.44 and 18,620.42 is: 25,695.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,366.71 : 43,284.44 = 18,620.42 : x
  2. Step 2: Convert to fraction form
    31,366.71/43,284.44 = 18,620.42/x
  3. Step 3: Cross multiply
    31,366.71x = 43,284.44 × 18,620.42
  4. Step 4: Simplify right side
    31,366.71x = 805,974,282.39
  5. Step 5: Solve for x
    x = 805,974,282.39/31,366.71
  6. Step 6: Final answer
    x = 25,695.21

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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.