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Finding the Fourth Proportional to 34,311.60, 51,469.80 and 13,532.40

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Solution

The fourth proportional to 34,311.60, 51,469.80 and 13,532.40 is: 20,299.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,311.60 : 51,469.80 = 13,532.40 : x
  2. Step 2: Convert to fraction form
    34,311.60/51,469.80 = 13,532.40/x
  3. Step 3: Cross multiply
    34,311.60x = 51,469.80 × 13,532.40
  4. Step 4: Simplify right side
    34,311.60x = 696,509,921.52
  5. Step 5: Solve for x
    x = 696,509,921.52/34,311.60
  6. Step 6: Final answer
    x = 20,299.55

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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.