Home / 19,731.84-27,222.84-12,662.16

Finding the Fourth Proportional to 19,731.84, 27,222.84 and 12,662.16

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Solution

The fourth proportional to 19,731.84, 27,222.84 and 12,662.16 is: 17,469.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,731.84 : 27,222.84 = 12,662.16 : x
  2. Step 2: Convert to fraction form
    19,731.84/27,222.84 = 12,662.16/x
  3. Step 3: Cross multiply
    19,731.84x = 27,222.84 × 12,662.16
  4. Step 4: Simplify right side
    19,731.84x = 344,699,955.73
  5. Step 5: Solve for x
    x = 344,699,955.73/19,731.84
  6. Step 6: Final answer
    x = 17,469.23

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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.