Home / 28,261.67-38,993.11-18,195.93

Finding the Fourth Proportional to 28,261.67, 38,993.11 and 18,195.93

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Solution

The fourth proportional to 28,261.67, 38,993.11 and 18,195.93 is: 25,105.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,261.67 : 38,993.11 = 18,195.93 : x
  2. Step 2: Convert to fraction form
    28,261.67/38,993.11 = 18,195.93/x
  3. Step 3: Cross multiply
    28,261.67x = 38,993.11 × 18,195.93
  4. Step 4: Simplify right side
    28,261.67x = 709,515,854.55
  5. Step 5: Solve for x
    x = 709,515,854.55/28,261.67
  6. Step 6: Final answer
    x = 25,105.24

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1.5x scale

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.