Home / 28,261.62-42,388.39-9,539.19

Finding the Fourth Proportional to 28,261.62, 42,388.39 and 9,539.19

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Solution

The fourth proportional to 28,261.62, 42,388.39 and 9,539.19 is: 14,307.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,261.62 : 42,388.39 = 9,539.19 : x
  2. Step 2: Convert to fraction form
    28,261.62/42,388.39 = 9,539.19/x
  3. Step 3: Cross multiply
    28,261.62x = 42,388.39 × 9,539.19
  4. Step 4: Simplify right side
    28,261.62x = 404,351,010.32
  5. Step 5: Solve for x
    x = 404,351,010.32/28,261.62
  6. Step 6: Final answer
    x = 14,307.42

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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.