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Finding the Fourth Proportional to 26,579.31, 36,649.02 and 19,853.61

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Solution

The fourth proportional to 26,579.31, 36,649.02 and 19,853.61 is: 27,375.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,579.31 : 36,649.02 = 19,853.61 : x
  2. Step 2: Convert to fraction form
    26,579.31/36,649.02 = 19,853.61/x
  3. Step 3: Cross multiply
    26,579.31x = 36,649.02 × 19,853.61
  4. Step 4: Simplify right side
    26,579.31x = 727,615,349.96
  5. Step 5: Solve for x
    x = 727,615,349.96/26,579.31
  6. Step 6: Final answer
    x = 27,375.25

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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.