Home / 28,193.54-42,286.64-10,661.09

Finding the Fourth Proportional to 28,193.54, 42,286.64 and 10,661.09

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Solution

The fourth proportional to 28,193.54, 42,286.64 and 10,661.09 is: 15,990.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,193.54 : 42,286.64 = 10,661.09 : x
  2. Step 2: Convert to fraction form
    28,193.54/42,286.64 = 10,661.09/x
  3. Step 3: Cross multiply
    28,193.54x = 42,286.64 × 10,661.09
  4. Step 4: Simplify right side
    28,193.54x = 450,821,410.10
  5. Step 5: Solve for x
    x = 450,821,410.10/28,193.54
  6. Step 6: Final answer
    x = 15,990.24

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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.