Home / 31,787.22-47,678.72-13,062.41

Finding the Fourth Proportional to 31,787.22, 47,678.72 and 13,062.41

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Solution

The fourth proportional to 31,787.22, 47,678.72 and 13,062.41 is: 19,592.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,787.22 : 47,678.72 = 13,062.41 : x
  2. Step 2: Convert to fraction form
    31,787.22/47,678.72 = 13,062.41/x
  3. Step 3: Cross multiply
    31,787.22x = 47,678.72 × 13,062.41
  4. Step 4: Simplify right side
    31,787.22x = 622,798,685.21
  5. Step 5: Solve for x
    x = 622,798,685.21/31,787.22
  6. Step 6: Final answer
    x = 19,592.74

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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.