Home / 22,727.84-31,370.22-13,165.79

Finding the Fourth Proportional to 22,727.84, 31,370.22 and 13,165.79

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Solution

The fourth proportional to 22,727.84, 31,370.22 and 13,165.79 is: 18,172.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,727.84 : 31,370.22 = 13,165.79 : x
  2. Step 2: Convert to fraction form
    22,727.84/31,370.22 = 13,165.79/x
  3. Step 3: Cross multiply
    22,727.84x = 31,370.22 × 13,165.79
  4. Step 4: Simplify right side
    22,727.84x = 413,013,571.92
  5. Step 5: Solve for x
    x = 413,013,571.92/22,727.84
  6. Step 6: Final answer
    x = 18,172.15

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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.