Home / 31,786.33-47,671.50-13,071.59

Finding the Fourth Proportional to 31,786.33, 47,671.50 and 13,071.59

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Solution

The fourth proportional to 31,786.33, 47,671.50 and 13,071.59 is: 19,604.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,786.33 : 47,671.50 = 13,071.59 : x
  2. Step 2: Convert to fraction form
    31,786.33/47,671.50 = 13,071.59/x
  3. Step 3: Cross multiply
    31,786.33x = 47,671.50 × 13,071.59
  4. Step 4: Simplify right side
    31,786.33x = 623,142,302.69
  5. Step 5: Solve for x
    x = 623,142,302.69/31,786.33
  6. Step 6: Final answer
    x = 19,604.10

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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.