Home / 22,217.63-30,660.35-12,281.63

Finding the Fourth Proportional to 22,217.63, 30,660.35 and 12,281.63

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Solution

The fourth proportional to 22,217.63, 30,660.35 and 12,281.63 is: 16,948.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,217.63 : 30,660.35 = 12,281.63 : x
  2. Step 2: Convert to fraction form
    22,217.63/30,660.35 = 12,281.63/x
  3. Step 3: Cross multiply
    22,217.63x = 30,660.35 × 12,281.63
  4. Step 4: Simplify right side
    22,217.63x = 376,558,859.66
  5. Step 5: Solve for x
    x = 376,558,859.66/22,217.63
  6. Step 6: Final answer
    x = 16,948.65

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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.