Home / 30,989.25-46,465.38-12,271.98

Finding the Fourth Proportional to 30,989.25, 46,465.38 and 12,271.98

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Solution

The fourth proportional to 30,989.25, 46,465.38 and 12,271.98 is: 18,400.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,989.25 : 46,465.38 = 12,271.98 : x
  2. Step 2: Convert to fraction form
    30,989.25/46,465.38 = 12,271.98/x
  3. Step 3: Cross multiply
    30,989.25x = 46,465.38 × 12,271.98
  4. Step 4: Simplify right side
    30,989.25x = 570,222,214.05
  5. Step 5: Solve for x
    x = 570,222,214.05/30,989.25
  6. Step 6: Final answer
    x = 18,400.65

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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.