Home / 43,427.84-65,039.67-21,171.47

Finding the Fourth Proportional to 43,427.84, 65,039.67 and 21,171.47

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Solution

The fourth proportional to 43,427.84, 65,039.67 and 21,171.47 is: 31,707.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,427.84 : 65,039.67 = 21,171.47 : x
  2. Step 2: Convert to fraction form
    43,427.84/65,039.67 = 21,171.47/x
  3. Step 3: Cross multiply
    43,427.84x = 65,039.67 × 21,171.47
  4. Step 4: Simplify right side
    43,427.84x = 1,376,985,097.02
  5. Step 5: Solve for x
    x = 1,376,985,097.02/43,427.84
  6. Step 6: Final answer
    x = 31,707.43

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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.