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Finding the Fourth Proportional to 27,402.60, 41,027.10 and 21,207.40

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Solution

The fourth proportional to 27,402.60, 41,027.10 and 21,207.40 is: 31,751.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,402.60 : 41,027.10 = 21,207.40 : x
  2. Step 2: Convert to fraction form
    27,402.60/41,027.10 = 21,207.40/x
  3. Step 3: Cross multiply
    27,402.60x = 41,027.10 × 21,207.40
  4. Step 4: Simplify right side
    27,402.60x = 870,078,120.54
  5. Step 5: Solve for x
    x = 870,078,120.54/27,402.60
  6. Step 6: Final answer
    x = 31,751.66

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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.