Home / 28,815.37-43,212.65-12,176.69

Finding the Fourth Proportional to 28,815.37, 43,212.65 and 12,176.69

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Solution

The fourth proportional to 28,815.37, 43,212.65 and 12,176.69 is: 18,260.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,815.37 : 43,212.65 = 12,176.69 : x
  2. Step 2: Convert to fraction form
    28,815.37/43,212.65 = 12,176.69/x
  3. Step 3: Cross multiply
    28,815.37x = 43,212.65 × 12,176.69
  4. Step 4: Simplify right side
    28,815.37x = 526,186,857.51
  5. Step 5: Solve for x
    x = 526,186,857.51/28,815.37
  6. Step 6: Final answer
    x = 18,260.63

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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.