Home / 19,713.84-27,234.78-12,923.99

Finding the Fourth Proportional to 19,713.84, 27,234.78 and 12,923.99

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Solution

The fourth proportional to 19,713.84, 27,234.78 and 12,923.99 is: 17,854.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,713.84 : 27,234.78 = 12,923.99 : x
  2. Step 2: Convert to fraction form
    19,713.84/27,234.78 = 12,923.99/x
  3. Step 3: Cross multiply
    19,713.84x = 27,234.78 × 12,923.99
  4. Step 4: Simplify right side
    19,713.84x = 351,982,047.67
  5. Step 5: Solve for x
    x = 351,982,047.67/19,713.84
  6. Step 6: Final answer
    x = 17,854.57

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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.