Home / 31,469.04-47,203.69-12,749.43

Finding the Fourth Proportional to 31,469.04, 47,203.69 and 12,749.43

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Solution

The fourth proportional to 31,469.04, 47,203.69 and 12,749.43 is: 19,124.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,469.04 : 47,203.69 = 12,749.43 : x
  2. Step 2: Convert to fraction form
    31,469.04/47,203.69 = 12,749.43/x
  3. Step 3: Cross multiply
    31,469.04x = 47,203.69 × 12,749.43
  4. Step 4: Simplify right side
    31,469.04x = 601,820,141.40
  5. Step 5: Solve for x
    x = 601,820,141.40/31,469.04
  6. Step 6: Final answer
    x = 19,124.20

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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.