Home / 22,281.66-30,748.68-12,210.72

Finding the Fourth Proportional to 22,281.66, 30,748.68 and 12,210.72

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Solution

The fourth proportional to 22,281.66, 30,748.68 and 12,210.72 is: 16,850.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,281.66 : 30,748.68 = 12,210.72 : x
  2. Step 2: Convert to fraction form
    22,281.66/30,748.68 = 12,210.72/x
  3. Step 3: Cross multiply
    22,281.66x = 30,748.68 × 12,210.72
  4. Step 4: Simplify right side
    22,281.66x = 375,463,521.85
  5. Step 5: Solve for x
    x = 375,463,521.85/22,281.66
  6. Step 6: Final answer
    x = 16,850.79

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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.