Home / 28,786.24-43,187.84-12,153.28

Finding the Fourth Proportional to 28,786.24, 43,187.84 and 12,153.28

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Solution

The fourth proportional to 28,786.24, 43,187.84 and 12,153.28 is: 18,233.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,786.24 : 43,187.84 = 12,153.28 : x
  2. Step 2: Convert to fraction form
    28,786.24/43,187.84 = 12,153.28/x
  3. Step 3: Cross multiply
    28,786.24x = 43,187.84 × 12,153.28
  4. Step 4: Simplify right side
    28,786.24x = 524,873,912.12
  5. Step 5: Solve for x
    x = 524,873,912.12/28,786.24
  6. Step 6: Final answer
    x = 18,233.50

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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.