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Finding the Fourth Proportional to 26,001.36, 38,978.11 and 14,137.80

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Solution

The fourth proportional to 26,001.36, 38,978.11 and 14,137.80 is: 21,193.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,001.36 : 38,978.11 = 14,137.80 : x
  2. Step 2: Convert to fraction form
    26,001.36/38,978.11 = 14,137.80/x
  3. Step 3: Cross multiply
    26,001.36x = 38,978.11 × 14,137.80
  4. Step 4: Simplify right side
    26,001.36x = 551,064,723.56
  5. Step 5: Solve for x
    x = 551,064,723.56/26,001.36
  6. Step 6: Final answer
    x = 21,193.69

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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.