Home / 28,777.26-43,171.78-12,137.31

Finding the Fourth Proportional to 28,777.26, 43,171.78 and 12,137.31

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Solution

The fourth proportional to 28,777.26, 43,171.78 and 12,137.31 is: 18,208.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,777.26 : 43,171.78 = 12,137.31 : x
  2. Step 2: Convert to fraction form
    28,777.26/43,171.78 = 12,137.31/x
  3. Step 3: Cross multiply
    28,777.26x = 43,171.78 × 12,137.31
  4. Step 4: Simplify right side
    28,777.26x = 523,989,277.11
  5. Step 5: Solve for x
    x = 523,989,277.11/28,777.26
  6. Step 6: Final answer
    x = 18,208.45

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1.5x scale

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.