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Finding the Fourth Proportional to 22,159.70, 33,259 and 12,310.10

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Solution

The fourth proportional to 22,159.70, 33,259 and 12,310.10 is: 18,475.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,159.70 : 33,259 = 12,310.10 : x
  2. Step 2: Convert to fraction form
    22,159.70/33,259 = 12,310.10/x
  3. Step 3: Cross multiply
    22,159.70x = 33,259 × 12,310.10
  4. Step 4: Simplify right side
    22,159.70x = 409,421,615.90
  5. Step 5: Solve for x
    x = 409,421,615.90/22,159.70
  6. Step 6: Final answer
    x = 18,475.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.