Home / 39,099.06-53,956.80-21,193.92

Finding the Fourth Proportional to 39,099.06, 53,956.80 and 21,193.92

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Solution

The fourth proportional to 39,099.06, 53,956.80 and 21,193.92 is: 29,247.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,099.06 : 53,956.80 = 21,193.92 : x
  2. Step 2: Convert to fraction form
    39,099.06/53,956.80 = 21,193.92/x
  3. Step 3: Cross multiply
    39,099.06x = 53,956.80 × 21,193.92
  4. Step 4: Simplify right side
    39,099.06x = 1,143,556,102.66
  5. Step 5: Solve for x
    x = 1,143,556,102.66/39,099.06
  6. Step 6: Final answer
    x = 29,247.66

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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.