Home / 27,378.22-37,781.76-15,441.67

Finding the Fourth Proportional to 27,378.22, 37,781.76 and 15,441.67

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Solution

The fourth proportional to 27,378.22, 37,781.76 and 15,441.67 is: 21,309.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,378.22 : 37,781.76 = 15,441.67 : x
  2. Step 2: Convert to fraction form
    27,378.22/37,781.76 = 15,441.67/x
  3. Step 3: Cross multiply
    27,378.22x = 37,781.76 × 15,441.67
  4. Step 4: Simplify right side
    27,378.22x = 583,413,469.94
  5. Step 5: Solve for x
    x = 583,413,469.94/27,378.22
  6. Step 6: Final answer
    x = 21,309.40

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1.5x scale

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.