Home / 19,929.45-27,472.19-12,846.81

Finding the Fourth Proportional to 19,929.45, 27,472.19 and 12,846.81

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Solution

The fourth proportional to 19,929.45, 27,472.19 and 12,846.81 is: 17,708.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,929.45 : 27,472.19 = 12,846.81 : x
  2. Step 2: Convert to fraction form
    19,929.45/27,472.19 = 12,846.81/x
  3. Step 3: Cross multiply
    19,929.45x = 27,472.19 × 12,846.81
  4. Step 4: Simplify right side
    19,929.45x = 352,929,940.98
  5. Step 5: Solve for x
    x = 352,929,940.98/19,929.45
  6. Step 6: Final answer
    x = 17,708.97

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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.