Home / 31,749.70-47,640.75-13,044.10

Finding the Fourth Proportional to 31,749.70, 47,640.75 and 13,044.10

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Solution

The fourth proportional to 31,749.70, 47,640.75 and 13,044.10 is: 19,572.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,749.70 : 47,640.75 = 13,044.10 : x
  2. Step 2: Convert to fraction form
    31,749.70/47,640.75 = 13,044.10/x
  3. Step 3: Cross multiply
    31,749.70x = 47,640.75 × 13,044.10
  4. Step 4: Simplify right side
    31,749.70x = 621,430,707.08
  5. Step 5: Solve for x
    x = 621,430,707.08/31,749.70
  6. Step 6: Final answer
    x = 19,572.81

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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.