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Finding the Fourth Proportional to 35,760.60, 49,339.80 and 21,414.60

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Solution

The fourth proportional to 35,760.60, 49,339.80 and 21,414.60 is: 29,546.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,760.60 : 49,339.80 = 21,414.60 : x
  2. Step 2: Convert to fraction form
    35,760.60/49,339.80 = 21,414.60/x
  3. Step 3: Cross multiply
    35,760.60x = 49,339.80 × 21,414.60
  4. Step 4: Simplify right side
    35,760.60x = 1,056,592,081.08
  5. Step 5: Solve for x
    x = 1,056,592,081.08/35,760.60
  6. Step 6: Final answer
    x = 29,546.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.