Home / 34,531.57-51,789.75-12,346.48

Finding the Fourth Proportional to 34,531.57, 51,789.75 and 12,346.48

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Solution

The fourth proportional to 34,531.57, 51,789.75 and 12,346.48 is: 18,517.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,531.57 : 51,789.75 = 12,346.48 : x
  2. Step 2: Convert to fraction form
    34,531.57/51,789.75 = 12,346.48/x
  3. Step 3: Cross multiply
    34,531.57x = 51,789.75 × 12,346.48
  4. Step 4: Simplify right side
    34,531.57x = 639,421,112.58
  5. Step 5: Solve for x
    x = 639,421,112.58/34,531.57
  6. Step 6: Final answer
    x = 18,517.00

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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.