Home / 31,469.74-47,204.72-12,750.13

Finding the Fourth Proportional to 31,469.74, 47,204.72 and 12,750.13

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Solution

The fourth proportional to 31,469.74, 47,204.72 and 12,750.13 is: 19,125.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,469.74 : 47,204.72 = 12,750.13 : x
  2. Step 2: Convert to fraction form
    31,469.74/47,204.72 = 12,750.13/x
  3. Step 3: Cross multiply
    31,469.74x = 47,204.72 × 12,750.13
  4. Step 4: Simplify right side
    31,469.74x = 601,866,431.40
  5. Step 5: Solve for x
    x = 601,866,431.40/31,469.74
  6. Step 6: Final answer
    x = 19,125.24

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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.