Home / 28,911.37-43,362.21-10,186.99

Finding the Fourth Proportional to 28,911.37, 43,362.21 and 10,186.99

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Solution

The fourth proportional to 28,911.37, 43,362.21 and 10,186.99 is: 15,278.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,911.37 : 43,362.21 = 10,186.99 : x
  2. Step 2: Convert to fraction form
    28,911.37/43,362.21 = 10,186.99/x
  3. Step 3: Cross multiply
    28,911.37x = 43,362.21 × 10,186.99
  4. Step 4: Simplify right side
    28,911.37x = 441,730,399.65
  5. Step 5: Solve for x
    x = 441,730,399.65/28,911.37
  6. Step 6: Final answer
    x = 15,278.78

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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.