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Finding the Fourth Proportional to 23,213.72, 34,814.07 and 8,978.92

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Solution

The fourth proportional to 23,213.72, 34,814.07 and 8,978.92 is: 13,465.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,213.72 : 34,814.07 = 8,978.92 : x
  2. Step 2: Convert to fraction form
    23,213.72/34,814.07 = 8,978.92/x
  3. Step 3: Cross multiply
    23,213.72x = 34,814.07 × 8,978.92
  4. Step 4: Simplify right side
    23,213.72x = 312,592,662.37
  5. Step 5: Solve for x
    x = 312,592,662.37/23,213.72
  6. Step 6: Final answer
    x = 13,465.86

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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.