Home / 19,399.17-26,749.67-13,100.61

Finding the Fourth Proportional to 19,399.17, 26,749.67 and 13,100.61

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Solution

The fourth proportional to 19,399.17, 26,749.67 and 13,100.61 is: 18,064.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,399.17 : 26,749.67 = 13,100.61 : x
  2. Step 2: Convert to fraction form
    19,399.17/26,749.67 = 13,100.61/x
  3. Step 3: Cross multiply
    19,399.17x = 26,749.67 × 13,100.61
  4. Step 4: Simplify right side
    19,399.17x = 350,436,928.80
  5. Step 5: Solve for x
    x = 350,436,928.80/19,399.17
  6. Step 6: Final answer
    x = 18,064.53

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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.