Home / 31,765.51-47,648.27-13,042.36

Finding the Fourth Proportional to 31,765.51, 47,648.27 and 13,042.36

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Solution

The fourth proportional to 31,765.51, 47,648.27 and 13,042.36 is: 19,563.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,765.51 : 47,648.27 = 13,042.36 : x
  2. Step 2: Convert to fraction form
    31,765.51/47,648.27 = 13,042.36/x
  3. Step 3: Cross multiply
    31,765.51x = 47,648.27 × 13,042.36
  4. Step 4: Simplify right side
    31,765.51x = 621,445,890.72
  5. Step 5: Solve for x
    x = 621,445,890.72/31,765.51
  6. Step 6: Final answer
    x = 19,563.54

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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.