Home / 28,113.96-42,175.26-9,388.20

Finding the Fourth Proportional to 28,113.96, 42,175.26 and 9,388.20

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Solution

The fourth proportional to 28,113.96, 42,175.26 and 9,388.20 is: 14,083.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,113.96 : 42,175.26 = 9,388.20 : x
  2. Step 2: Convert to fraction form
    28,113.96/42,175.26 = 9,388.20/x
  3. Step 3: Cross multiply
    28,113.96x = 42,175.26 × 9,388.20
  4. Step 4: Simplify right side
    28,113.96x = 395,949,775.93
  5. Step 5: Solve for x
    x = 395,949,775.93/28,113.96
  6. Step 6: Final answer
    x = 14,083.74

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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.