Home / 22,311.84-30,790.07-12,240.36

Finding the Fourth Proportional to 22,311.84, 30,790.07 and 12,240.36

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Solution

The fourth proportional to 22,311.84, 30,790.07 and 12,240.36 is: 16,891.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,311.84 : 30,790.07 = 12,240.36 : x
  2. Step 2: Convert to fraction form
    22,311.84/30,790.07 = 12,240.36/x
  3. Step 3: Cross multiply
    22,311.84x = 30,790.07 × 12,240.36
  4. Step 4: Simplify right side
    22,311.84x = 376,881,417.88
  5. Step 5: Solve for x
    x = 376,881,417.88/22,311.84
  6. Step 6: Final answer
    x = 16,891.55

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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.