Home / 43,950.80-65,907-12,785.36

Finding the Fourth Proportional to 43,950.80, 65,907 and 12,785.36

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Solution

The fourth proportional to 43,950.80, 65,907 and 12,785.36 is: 19,172.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,950.80 : 65,907 = 12,785.36 : x
  2. Step 2: Convert to fraction form
    43,950.80/65,907 = 12,785.36/x
  3. Step 3: Cross multiply
    43,950.80x = 65,907 × 12,785.36
  4. Step 4: Simplify right side
    43,950.80x = 842,644,721.52
  5. Step 5: Solve for x
    x = 842,644,721.52/43,950.80
  6. Step 6: Final answer
    x = 19,172.45

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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.