Home / 18,231.58-25,165.83-10,680.33

Finding the Fourth Proportional to 18,231.58, 25,165.83 and 10,680.33

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Solution

The fourth proportional to 18,231.58, 25,165.83 and 10,680.33 is: 14,742.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,231.58 : 25,165.83 = 10,680.33 : x
  2. Step 2: Convert to fraction form
    18,231.58/25,165.83 = 10,680.33/x
  3. Step 3: Cross multiply
    18,231.58x = 25,165.83 × 10,680.33
  4. Step 4: Simplify right side
    18,231.58x = 268,779,369.12
  5. Step 5: Solve for x
    x = 268,779,369.12/18,231.58
  6. Step 6: Final answer
    x = 14,742.52

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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.