Home / 19,738.48-27,238.78-10,785.79

Finding the Fourth Proportional to 19,738.48, 27,238.78 and 10,785.79

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Solution

The fourth proportional to 19,738.48, 27,238.78 and 10,785.79 is: 14,884.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,738.48 : 27,238.78 = 10,785.79 : x
  2. Step 2: Convert to fraction form
    19,738.48/27,238.78 = 10,785.79/x
  3. Step 3: Cross multiply
    19,738.48x = 27,238.78 × 10,785.79
  4. Step 4: Simplify right side
    19,738.48x = 293,791,760.94
  5. Step 5: Solve for x
    x = 293,791,760.94/19,738.48
  6. Step 6: Final answer
    x = 14,884.21

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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.