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Finding the Fourth Proportional to 43,891, 65,803.56 and 14,291.26

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Solution

The fourth proportional to 43,891, 65,803.56 and 14,291.26 is: 21,426.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,891 : 65,803.56 = 14,291.26 : x
  2. Step 2: Convert to fraction form
    43,891/65,803.56 = 14,291.26/x
  3. Step 3: Cross multiply
    43,891x = 65,803.56 × 14,291.26
  4. Step 4: Simplify right side
    43,891x = 940,415,784.89
  5. Step 5: Solve for x
    x = 940,415,784.89/43,891
  6. Step 6: Final answer
    x = 21,426.16

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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.