Home / 22,281.62-30,748.20-12,210.05

Finding the Fourth Proportional to 22,281.62, 30,748.20 and 12,210.05

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Solution

The fourth proportional to 22,281.62, 30,748.20 and 12,210.05 is: 16,849.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,281.62 : 30,748.20 = 12,210.05 : x
  2. Step 2: Convert to fraction form
    22,281.62/30,748.20 = 12,210.05/x
  3. Step 3: Cross multiply
    22,281.62x = 30,748.20 × 12,210.05
  4. Step 4: Simplify right side
    22,281.62x = 375,436,905.67
  5. Step 5: Solve for x
    x = 375,436,905.67/22,281.62
  6. Step 6: Final answer
    x = 16,849.63

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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.