Home / 43,131.53-64,713.33-19,431.95

Finding the Fourth Proportional to 43,131.53, 64,713.33 and 19,431.95

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Solution

The fourth proportional to 43,131.53, 64,713.33 and 19,431.95 is: 29,155.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,131.53 : 64,713.33 = 19,431.95 : x
  2. Step 2: Convert to fraction form
    43,131.53/64,713.33 = 19,431.95/x
  3. Step 3: Cross multiply
    43,131.53x = 64,713.33 × 19,431.95
  4. Step 4: Simplify right side
    43,131.53x = 1,257,505,869.33
  5. Step 5: Solve for x
    x = 1,257,505,869.33/43,131.53
  6. Step 6: Final answer
    x = 29,155.15

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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.