Home / 30,788.79-46,183.64-20,325.81

Finding the Fourth Proportional to 30,788.79, 46,183.64 and 20,325.81

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Solution

The fourth proportional to 30,788.79, 46,183.64 and 20,325.81 is: 30,489.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,788.79 : 46,183.64 = 20,325.81 : x
  2. Step 2: Convert to fraction form
    30,788.79/46,183.64 = 20,325.81/x
  3. Step 3: Cross multiply
    30,788.79x = 46,183.64 × 20,325.81
  4. Step 4: Simplify right side
    30,788.79x = 938,719,891.75
  5. Step 5: Solve for x
    x = 938,719,891.75/30,788.79
  6. Step 6: Final answer
    x = 30,489.02

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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.