Home / 27,376.20-37,778.66-15,439.56

Finding the Fourth Proportional to 27,376.20, 37,778.66 and 15,439.56

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Solution

The fourth proportional to 27,376.20, 37,778.66 and 15,439.56 is: 21,306.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,376.20 : 37,778.66 = 15,439.56 : x
  2. Step 2: Convert to fraction form
    27,376.20/37,778.66 = 15,439.56/x
  3. Step 3: Cross multiply
    27,376.20x = 37,778.66 × 15,439.56
  4. Step 4: Simplify right side
    27,376.20x = 583,285,887.79
  5. Step 5: Solve for x
    x = 583,285,887.79/27,376.20
  6. Step 6: Final answer
    x = 21,306.31

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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.