Home / 22,685.43-34,028.75-8,643.68

Finding the Fourth Proportional to 22,685.43, 34,028.75 and 8,643.68

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Solution

The fourth proportional to 22,685.43, 34,028.75 and 8,643.68 is: 12,965.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,685.43 : 34,028.75 = 8,643.68 : x
  2. Step 2: Convert to fraction form
    22,685.43/34,028.75 = 8,643.68/x
  3. Step 3: Cross multiply
    22,685.43x = 34,028.75 × 8,643.68
  4. Step 4: Simplify right side
    22,685.43x = 294,133,625.80
  5. Step 5: Solve for x
    x = 294,133,625.80/22,685.43
  6. Step 6: Final answer
    x = 12,965.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.