Home / 42,601.80-63,912.09-13,021.95

Finding the Fourth Proportional to 42,601.80, 63,912.09 and 13,021.95

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Solution

The fourth proportional to 42,601.80, 63,912.09 and 13,021.95 is: 19,535.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,601.80 : 63,912.09 = 13,021.95 : x
  2. Step 2: Convert to fraction form
    42,601.80/63,912.09 = 13,021.95/x
  3. Step 3: Cross multiply
    42,601.80x = 63,912.09 × 13,021.95
  4. Step 4: Simplify right side
    42,601.80x = 832,260,040.38
  5. Step 5: Solve for x
    x = 832,260,040.38/42,601.80
  6. Step 6: Final answer
    x = 19,535.80

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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.