Home / 20,583.64-28,406.40-11,631.52

Finding the Fourth Proportional to 20,583.64, 28,406.40 and 11,631.52

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Solution

The fourth proportional to 20,583.64, 28,406.40 and 11,631.52 is: 16,052.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,583.64 : 28,406.40 = 11,631.52 : x
  2. Step 2: Convert to fraction form
    20,583.64/28,406.40 = 11,631.52/x
  3. Step 3: Cross multiply
    20,583.64x = 28,406.40 × 11,631.52
  4. Step 4: Simplify right side
    20,583.64x = 330,409,609.73
  5. Step 5: Solve for x
    x = 330,409,609.73/20,583.64
  6. Step 6: Final answer
    x = 16,052.05

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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.