Home / 30,855.81-46,270.62-12,132.87

Finding the Fourth Proportional to 30,855.81, 46,270.62 and 12,132.87

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Solution

The fourth proportional to 30,855.81, 46,270.62 and 12,132.87 is: 18,194.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,855.81 : 46,270.62 = 12,132.87 : x
  2. Step 2: Convert to fraction form
    30,855.81/46,270.62 = 12,132.87/x
  3. Step 3: Cross multiply
    30,855.81x = 46,270.62 × 12,132.87
  4. Step 4: Simplify right side
    30,855.81x = 561,395,243.76
  5. Step 5: Solve for x
    x = 561,395,243.76/30,855.81
  6. Step 6: Final answer
    x = 18,194.15

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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.