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Finding the Fourth Proportional to 34,748.42, 52,122.20 and 8,453.20

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Solution

The fourth proportional to 34,748.42, 52,122.20 and 8,453.20 is: 12,679.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,748.42 : 52,122.20 = 8,453.20 : x
  2. Step 2: Convert to fraction form
    34,748.42/52,122.20 = 8,453.20/x
  3. Step 3: Cross multiply
    34,748.42x = 52,122.20 × 8,453.20
  4. Step 4: Simplify right side
    34,748.42x = 440,599,381.04
  5. Step 5: Solve for x
    x = 440,599,381.04/34,748.42
  6. Step 6: Final answer
    x = 12,679.70

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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.