Home / 20,465.64-28,243.62-12,081.96

Finding the Fourth Proportional to 20,465.64, 28,243.62 and 12,081.96

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Solution

The fourth proportional to 20,465.64, 28,243.62 and 12,081.96 is: 16,673.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,465.64 : 28,243.62 = 12,081.96 : x
  2. Step 2: Convert to fraction form
    20,465.64/28,243.62 = 12,081.96/x
  3. Step 3: Cross multiply
    20,465.64x = 28,243.62 × 12,081.96
  4. Step 4: Simplify right side
    20,465.64x = 341,238,287.10
  5. Step 5: Solve for x
    x = 341,238,287.10/20,465.64
  6. Step 6: Final answer
    x = 16,673.72

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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.