Home / 38,580.77-57,876.54-11,928.94

Finding the Fourth Proportional to 38,580.77, 57,876.54 and 11,928.94

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Solution

The fourth proportional to 38,580.77, 57,876.54 and 11,928.94 is: 17,895.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,580.77 : 57,876.54 = 11,928.94 : x
  2. Step 2: Convert to fraction form
    38,580.77/57,876.54 = 11,928.94/x
  3. Step 3: Cross multiply
    38,580.77x = 57,876.54 × 11,928.94
  4. Step 4: Simplify right side
    38,580.77x = 690,405,628.38
  5. Step 5: Solve for x
    x = 690,405,628.38/38,580.77
  6. Step 6: Final answer
    x = 17,895.07

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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.