Home / 30,871.86-46,280.26-11,146.02

Finding the Fourth Proportional to 30,871.86, 46,280.26 and 11,146.02

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Solution

The fourth proportional to 30,871.86, 46,280.26 and 11,146.02 is: 16,709.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,871.86 : 46,280.26 = 11,146.02 : x
  2. Step 2: Convert to fraction form
    30,871.86/46,280.26 = 11,146.02/x
  3. Step 3: Cross multiply
    30,871.86x = 46,280.26 × 11,146.02
  4. Step 4: Simplify right side
    30,871.86x = 515,840,703.57
  5. Step 5: Solve for x
    x = 515,840,703.57/30,871.86
  6. Step 6: Final answer
    x = 16,709.09

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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.