Home / 28,104.66-42,171.57-20,377.26

Finding the Fourth Proportional to 28,104.66, 42,171.57 and 20,377.26

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Solution

The fourth proportional to 28,104.66, 42,171.57 and 20,377.26 is: 30,576.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,104.66 : 42,171.57 = 20,377.26 : x
  2. Step 2: Convert to fraction form
    28,104.66/42,171.57 = 20,377.26/x
  3. Step 3: Cross multiply
    28,104.66x = 42,171.57 × 20,377.26
  4. Step 4: Simplify right side
    28,104.66x = 859,341,046.50
  5. Step 5: Solve for x
    x = 859,341,046.50/28,104.66
  6. Step 6: Final answer
    x = 30,576.46

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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.