Home / 28,186.94-42,286.36-10,656.38

Finding the Fourth Proportional to 28,186.94, 42,286.36 and 10,656.38

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Solution

The fourth proportional to 28,186.94, 42,286.36 and 10,656.38 is: 15,986.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,186.94 : 42,286.36 = 10,656.38 : x
  2. Step 2: Convert to fraction form
    28,186.94/42,286.36 = 10,656.38/x
  3. Step 3: Cross multiply
    28,186.94x = 42,286.36 × 10,656.38
  4. Step 4: Simplify right side
    28,186.94x = 450,619,520.98
  5. Step 5: Solve for x
    x = 450,619,520.98/28,186.94
  6. Step 6: Final answer
    x = 15,986.82

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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.