Home / 28,777.64-43,172.33-12,137.64

Finding the Fourth Proportional to 28,777.64, 43,172.33 and 12,137.64

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Solution

The fourth proportional to 28,777.64, 43,172.33 and 12,137.64 is: 18,208.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,777.64 : 43,172.33 = 12,137.64 : x
  2. Step 2: Convert to fraction form
    28,777.64/43,172.33 = 12,137.64/x
  3. Step 3: Cross multiply
    28,777.64x = 43,172.33 × 12,137.64
  4. Step 4: Simplify right side
    28,777.64x = 524,009,976.92
  5. Step 5: Solve for x
    x = 524,009,976.92/28,777.64
  6. Step 6: Final answer
    x = 18,208.93

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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.