Home / 28,452.87-42,664.73-18,042.75

Finding the Fourth Proportional to 28,452.87, 42,664.73 and 18,042.75

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Solution

The fourth proportional to 28,452.87, 42,664.73 and 18,042.75 is: 27,054.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,452.87 : 42,664.73 = 18,042.75 : x
  2. Step 2: Convert to fraction form
    28,452.87/42,664.73 = 18,042.75/x
  3. Step 3: Cross multiply
    28,452.87x = 42,664.73 × 18,042.75
  4. Step 4: Simplify right side
    28,452.87x = 769,788,966.99
  5. Step 5: Solve for x
    x = 769,788,966.99/28,452.87
  6. Step 6: Final answer
    x = 27,054.88

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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.