Home / 28,912.52-43,359.49-9,186.47

Finding the Fourth Proportional to 28,912.52, 43,359.49 and 9,186.47

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Solution

The fourth proportional to 28,912.52, 43,359.49 and 9,186.47 is: 13,776.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,912.52 : 43,359.49 = 9,186.47 : x
  2. Step 2: Convert to fraction form
    28,912.52/43,359.49 = 9,186.47/x
  3. Step 3: Cross multiply
    28,912.52x = 43,359.49 × 9,186.47
  4. Step 4: Simplify right side
    28,912.52x = 398,320,611.38
  5. Step 5: Solve for x
    x = 398,320,611.38/28,912.52
  6. Step 6: Final answer
    x = 13,776.75

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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.