Home / 28,383.30-42,552.27-11,751.57

Finding the Fourth Proportional to 28,383.30, 42,552.27 and 11,751.57

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Solution

The fourth proportional to 28,383.30, 42,552.27 and 11,751.57 is: 17,617.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,383.30 : 42,552.27 = 11,751.57 : x
  2. Step 2: Convert to fraction form
    28,383.30/42,552.27 = 11,751.57/x
  3. Step 3: Cross multiply
    28,383.30x = 42,552.27 × 11,751.57
  4. Step 4: Simplify right side
    28,383.30x = 500,055,979.56
  5. Step 5: Solve for x
    x = 500,055,979.56/28,383.30
  6. Step 6: Final answer
    x = 17,617.96

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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.