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Finding the Fourth Proportional to 34,679.46, 52,019.20 and 8,384.20

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Solution

The fourth proportional to 34,679.46, 52,019.20 and 8,384.20 is: 12,576.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,679.46 : 52,019.20 = 8,384.20 : x
  2. Step 2: Convert to fraction form
    34,679.46/52,019.20 = 8,384.20/x
  3. Step 3: Cross multiply
    34,679.46x = 52,019.20 × 8,384.20
  4. Step 4: Simplify right side
    34,679.46x = 436,139,376.64
  5. Step 5: Solve for x
    x = 436,139,376.64/34,679.46
  6. Step 6: Final answer
    x = 12,576.30

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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.