Home / 20,623.58-28,467.31-12,125.29

Finding the Fourth Proportional to 20,623.58, 28,467.31 and 12,125.29

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Solution

The fourth proportional to 20,623.58, 28,467.31 and 12,125.29 is: 16,736.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,623.58 : 28,467.31 = 12,125.29 : x
  2. Step 2: Convert to fraction form
    20,623.58/28,467.31 = 12,125.29/x
  3. Step 3: Cross multiply
    20,623.58x = 28,467.31 × 12,125.29
  4. Step 4: Simplify right side
    20,623.58x = 345,174,412.64
  5. Step 5: Solve for x
    x = 345,174,412.64/20,623.58
  6. Step 6: Final answer
    x = 16,736.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.