Home / 28,872.72-43,313.40-12,232.80

Finding the Fourth Proportional to 28,872.72, 43,313.40 and 12,232.80

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Solution

The fourth proportional to 28,872.72, 43,313.40 and 12,232.80 is: 18,351.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,872.72 : 43,313.40 = 12,232.80 : x
  2. Step 2: Convert to fraction form
    28,872.72/43,313.40 = 12,232.80/x
  3. Step 3: Cross multiply
    28,872.72x = 43,313.40 × 12,232.80
  4. Step 4: Simplify right side
    28,872.72x = 529,844,159.52
  5. Step 5: Solve for x
    x = 529,844,159.52/28,872.72
  6. Step 6: Final answer
    x = 18,351.03

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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.