Home / 30,918.52-46,357.62-20,356.57

Finding the Fourth Proportional to 30,918.52, 46,357.62 and 20,356.57

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Solution

The fourth proportional to 30,918.52, 46,357.62 and 20,356.57 is: 30,521.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,918.52 : 46,357.62 = 20,356.57 : x
  2. Step 2: Convert to fraction form
    30,918.52/46,357.62 = 20,356.57/x
  3. Step 3: Cross multiply
    30,918.52x = 46,357.62 × 20,356.57
  4. Step 4: Simplify right side
    30,918.52x = 943,682,136.56
  5. Step 5: Solve for x
    x = 943,682,136.56/30,918.52
  6. Step 6: Final answer
    x = 30,521.58

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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.