Home / 38,211.88-57,316.86-13,269.80

Finding the Fourth Proportional to 38,211.88, 57,316.86 and 13,269.80

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Solution

The fourth proportional to 38,211.88, 57,316.86 and 13,269.80 is: 19,904.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,211.88 : 57,316.86 = 13,269.80 : x
  2. Step 2: Convert to fraction form
    38,211.88/57,316.86 = 13,269.80/x
  3. Step 3: Cross multiply
    38,211.88x = 57,316.86 × 13,269.80
  4. Step 4: Simplify right side
    38,211.88x = 760,583,268.83
  5. Step 5: Solve for x
    x = 760,583,268.83/38,211.88
  6. Step 6: Final answer
    x = 19,904.37

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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.