Home / 19,432.06-29,126.22-7,731.61

Finding the Fourth Proportional to 19,432.06, 29,126.22 and 7,731.61

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Solution

The fourth proportional to 19,432.06, 29,126.22 and 7,731.61 is: 11,588.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,432.06 : 29,126.22 = 7,731.61 : x
  2. Step 2: Convert to fraction form
    19,432.06/29,126.22 = 7,731.61/x
  3. Step 3: Cross multiply
    19,432.06x = 29,126.22 × 7,731.61
  4. Step 4: Simplify right side
    19,432.06x = 225,192,573.81
  5. Step 5: Solve for x
    x = 225,192,573.81/19,432.06
  6. Step 6: Final answer
    x = 11,588.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.