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Finding the Fourth Proportional to 28,893.64, 43,340.64 and 8,902.89

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Solution

The fourth proportional to 28,893.64, 43,340.64 and 8,902.89 is: 13,354.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,893.64 : 43,340.64 = 8,902.89 : x
  2. Step 2: Convert to fraction form
    28,893.64/43,340.64 = 8,902.89/x
  3. Step 3: Cross multiply
    28,893.64x = 43,340.64 × 8,902.89
  4. Step 4: Simplify right side
    28,893.64x = 385,856,733.75
  5. Step 5: Solve for x
    x = 385,856,733.75/28,893.64
  6. Step 6: Final answer
    x = 13,354.38

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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.