Home / 38,186.97-57,269.51-13,220.54

Finding the Fourth Proportional to 38,186.97, 57,269.51 and 13,220.54

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Solution

The fourth proportional to 38,186.97, 57,269.51 and 13,220.54 is: 19,827.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,186.97 : 57,269.51 = 13,220.54 : x
  2. Step 2: Convert to fraction form
    38,186.97/57,269.51 = 13,220.54/x
  3. Step 3: Cross multiply
    38,186.97x = 57,269.51 × 13,220.54
  4. Step 4: Simplify right side
    38,186.97x = 757,133,847.74
  5. Step 5: Solve for x
    x = 757,133,847.74/38,186.97
  6. Step 6: Final answer
    x = 19,827.02

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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.