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Finding the Fourth Proportional to 26,155, 39,232.86 and 14,491

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Solution

The fourth proportional to 26,155, 39,232.86 and 14,491 is: 21,736.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,155 : 39,232.86 = 14,491 : x
  2. Step 2: Convert to fraction form
    26,155/39,232.86 = 14,491/x
  3. Step 3: Cross multiply
    26,155x = 39,232.86 × 14,491
  4. Step 4: Simplify right side
    26,155x = 568,523,374.26
  5. Step 5: Solve for x
    x = 568,523,374.26/26,155
  6. Step 6: Final answer
    x = 21,736.70

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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.