Home / 38,779.67-58,174.97-13,812.33

Finding the Fourth Proportional to 38,779.67, 58,174.97 and 13,812.33

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Solution

The fourth proportional to 38,779.67, 58,174.97 and 13,812.33 is: 20,720.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,779.67 : 58,174.97 = 13,812.33 : x
  2. Step 2: Convert to fraction form
    38,779.67/58,174.97 = 13,812.33/x
  3. Step 3: Cross multiply
    38,779.67x = 58,174.97 × 13,812.33
  4. Step 4: Simplify right side
    38,779.67x = 803,531,523.44
  5. Step 5: Solve for x
    x = 803,531,523.44/38,779.67
  6. Step 6: Final answer
    x = 20,720.43

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1.5x scale

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.