Home / 39,868.88-55,022.94-29,779.80

Finding the Fourth Proportional to 39,868.88, 55,022.94 and 29,779.80

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Solution

The fourth proportional to 39,868.88, 55,022.94 and 29,779.80 is: 41,099.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,868.88 : 55,022.94 = 29,779.80 : x
  2. Step 2: Convert to fraction form
    39,868.88/55,022.94 = 29,779.80/x
  3. Step 3: Cross multiply
    39,868.88x = 55,022.94 × 29,779.80
  4. Step 4: Simplify right side
    39,868.88x = 1,638,572,148.61
  5. Step 5: Solve for x
    x = 1,638,572,148.61/39,868.88
  6. Step 6: Final answer
    x = 41,099.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.