Home / 28,907.56-43,360.34-12,256.87

Finding the Fourth Proportional to 28,907.56, 43,360.34 and 12,256.87

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Solution

The fourth proportional to 28,907.56, 43,360.34 and 12,256.87 is: 18,384.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,907.56 : 43,360.34 = 12,256.87 : x
  2. Step 2: Convert to fraction form
    28,907.56/43,360.34 = 12,256.87/x
  3. Step 3: Cross multiply
    28,907.56x = 43,360.34 × 12,256.87
  4. Step 4: Simplify right side
    28,907.56x = 531,462,050.54
  5. Step 5: Solve for x
    x = 531,462,050.54/28,907.56
  6. Step 6: Final answer
    x = 18,384.88

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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.