Home / 19,760.78-27,254.13-16,786.46

Finding the Fourth Proportional to 19,760.78, 27,254.13 and 16,786.46

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Solution

The fourth proportional to 19,760.78, 27,254.13 and 16,786.46 is: 23,151.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,760.78 : 27,254.13 = 16,786.46 : x
  2. Step 2: Convert to fraction form
    19,760.78/27,254.13 = 16,786.46/x
  3. Step 3: Cross multiply
    19,760.78x = 27,254.13 × 16,786.46
  4. Step 4: Simplify right side
    19,760.78x = 457,500,363.08
  5. Step 5: Solve for x
    x = 457,500,363.08/19,760.78
  6. Step 6: Final answer
    x = 23,151.94

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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.