Home / 28,379.25-42,568.86-13,180.27

Finding the Fourth Proportional to 28,379.25, 42,568.86 and 13,180.27

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Solution

The fourth proportional to 28,379.25, 42,568.86 and 13,180.27 is: 19,770.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,379.25 : 42,568.86 = 13,180.27 : x
  2. Step 2: Convert to fraction form
    28,379.25/42,568.86 = 13,180.27/x
  3. Step 3: Cross multiply
    28,379.25x = 42,568.86 × 13,180.27
  4. Step 4: Simplify right side
    28,379.25x = 561,069,121.60
  5. Step 5: Solve for x
    x = 561,069,121.60/28,379.25
  6. Step 6: Final answer
    x = 19,770.40

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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.