Home / 42,629.88-63,944.88-13,047.84

Finding the Fourth Proportional to 42,629.88, 63,944.88 and 13,047.84

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Solution

The fourth proportional to 42,629.88, 63,944.88 and 13,047.84 is: 19,571.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,629.88 : 63,944.88 = 13,047.84 : x
  2. Step 2: Convert to fraction form
    42,629.88/63,944.88 = 13,047.84/x
  3. Step 3: Cross multiply
    42,629.88x = 63,944.88 × 13,047.84
  4. Step 4: Simplify right side
    42,629.88x = 834,342,563.06
  5. Step 5: Solve for x
    x = 834,342,563.06/42,629.88
  6. Step 6: Final answer
    x = 19,571.78

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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.