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Finding the Fourth Proportional to 28,667.39, 43,008.37 and 8,946.11

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Solution

The fourth proportional to 28,667.39, 43,008.37 and 8,946.11 is: 13,421.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,667.39 : 43,008.37 = 8,946.11 : x
  2. Step 2: Convert to fraction form
    28,667.39/43,008.37 = 8,946.11/x
  3. Step 3: Cross multiply
    28,667.39x = 43,008.37 × 8,946.11
  4. Step 4: Simplify right side
    28,667.39x = 384,757,694.10
  5. Step 5: Solve for x
    x = 384,757,694.10/28,667.39
  6. Step 6: Final answer
    x = 13,421.44

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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.