Home / 28,921.96-43,382.34-9,200.56

Finding the Fourth Proportional to 28,921.96, 43,382.34 and 9,200.56

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Solution

The fourth proportional to 28,921.96, 43,382.34 and 9,200.56 is: 13,800.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,921.96 : 43,382.34 = 9,200.56 : x
  2. Step 2: Convert to fraction form
    28,921.96/43,382.34 = 9,200.56/x
  3. Step 3: Cross multiply
    28,921.96x = 43,382.34 × 9,200.56
  4. Step 4: Simplify right side
    28,921.96x = 399,141,822.11
  5. Step 5: Solve for x
    x = 399,141,822.11/28,921.96
  6. Step 6: Final answer
    x = 13,800.65

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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.