Home / 27,945.75-38,565.09-15,370.50

Finding the Fourth Proportional to 27,945.75, 38,565.09 and 15,370.50

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Solution

The fourth proportional to 27,945.75, 38,565.09 and 15,370.50 is: 21,211.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,945.75 : 38,565.09 = 15,370.50 : x
  2. Step 2: Convert to fraction form
    27,945.75/38,565.09 = 15,370.50/x
  3. Step 3: Cross multiply
    27,945.75x = 38,565.09 × 15,370.50
  4. Step 4: Simplify right side
    27,945.75x = 592,764,715.85
  5. Step 5: Solve for x
    x = 592,764,715.85/27,945.75
  6. Step 6: Final answer
    x = 21,211.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.