Home / 19,881.70-27,436.24-10,806.66

Finding the Fourth Proportional to 19,881.70, 27,436.24 and 10,806.66

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Solution

The fourth proportional to 19,881.70, 27,436.24 and 10,806.66 is: 14,912.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,881.70 : 27,436.24 = 10,806.66 : x
  2. Step 2: Convert to fraction form
    19,881.70/27,436.24 = 10,806.66/x
  3. Step 3: Cross multiply
    19,881.70x = 27,436.24 × 10,806.66
  4. Step 4: Simplify right side
    19,881.70x = 296,494,117.36
  5. Step 5: Solve for x
    x = 296,494,117.36/19,881.70
  6. Step 6: Final answer
    x = 14,912.92

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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.