Home / 40,268.84-60,406.20-10,686

Finding the Fourth Proportional to 40,268.84, 60,406.20 and 10,686

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Solution

The fourth proportional to 40,268.84, 60,406.20 and 10,686 is: 16,029.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,268.84 : 60,406.20 = 10,686 : x
  2. Step 2: Convert to fraction form
    40,268.84/60,406.20 = 10,686/x
  3. Step 3: Cross multiply
    40,268.84x = 60,406.20 × 10,686
  4. Step 4: Simplify right side
    40,268.84x = 645,500,653.20
  5. Step 5: Solve for x
    x = 645,500,653.20/40,268.84
  6. Step 6: Final answer
    x = 16,029.78

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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.