Home / 34,485-51,736.74-18,686.34

Finding the Fourth Proportional to 34,485, 51,736.74 and 18,686.34

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Solution

The fourth proportional to 34,485, 51,736.74 and 18,686.34 is: 28,034.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,485 : 51,736.74 = 18,686.34 : x
  2. Step 2: Convert to fraction form
    34,485/51,736.74 = 18,686.34/x
  3. Step 3: Cross multiply
    34,485x = 51,736.74 × 18,686.34
  4. Step 4: Simplify right side
    34,485x = 966,770,314.13
  5. Step 5: Solve for x
    x = 966,770,314.13/34,485
  6. Step 6: Final answer
    x = 28,034.52

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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.