Home / 30,989.25-46,465.39-12,271.97

Finding the Fourth Proportional to 30,989.25, 46,465.39 and 12,271.97

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Solution

The fourth proportional to 30,989.25, 46,465.39 and 12,271.97 is: 18,400.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,989.25 : 46,465.39 = 12,271.97 : x
  2. Step 2: Convert to fraction form
    30,989.25/46,465.39 = 12,271.97/x
  3. Step 3: Cross multiply
    30,989.25x = 46,465.39 × 12,271.97
  4. Step 4: Simplify right side
    30,989.25x = 570,221,872.12
  5. Step 5: Solve for x
    x = 570,221,872.12/30,989.25
  6. Step 6: Final answer
    x = 18,400.64

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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.