Home / 20,631.36-30,942.08-9,527.39

Finding the Fourth Proportional to 20,631.36, 30,942.08 and 9,527.39

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Solution

The fourth proportional to 20,631.36, 30,942.08 and 9,527.39 is: 14,288.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,631.36 : 30,942.08 = 9,527.39 : x
  2. Step 2: Convert to fraction form
    20,631.36/30,942.08 = 9,527.39/x
  3. Step 3: Cross multiply
    20,631.36x = 30,942.08 × 9,527.39
  4. Step 4: Simplify right side
    20,631.36x = 294,797,061.22
  5. Step 5: Solve for x
    x = 294,797,061.22/20,631.36
  6. Step 6: Final answer
    x = 14,288.78

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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.