Home / 28,809.54-43,220.39-12,179.84

Finding the Fourth Proportional to 28,809.54, 43,220.39 and 12,179.84

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Solution

The fourth proportional to 28,809.54, 43,220.39 and 12,179.84 is: 18,272.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,809.54 : 43,220.39 = 12,179.84 : x
  2. Step 2: Convert to fraction form
    28,809.54/43,220.39 = 12,179.84/x
  3. Step 3: Cross multiply
    28,809.54x = 43,220.39 × 12,179.84
  4. Step 4: Simplify right side
    28,809.54x = 526,417,157.94
  5. Step 5: Solve for x
    x = 526,417,157.94/28,809.54
  6. Step 6: Final answer
    x = 18,272.32

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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.