Home / 20,538.92-30,808.29-4,956.50

Finding the Fourth Proportional to 20,538.92, 30,808.29 and 4,956.50

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Solution

The fourth proportional to 20,538.92, 30,808.29 and 4,956.50 is: 7,434.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,538.92 : 30,808.29 = 4,956.50 : x
  2. Step 2: Convert to fraction form
    20,538.92/30,808.29 = 4,956.50/x
  3. Step 3: Cross multiply
    20,538.92x = 30,808.29 × 4,956.50
  4. Step 4: Simplify right side
    20,538.92x = 152,701,289.39
  5. Step 5: Solve for x
    x = 152,701,289.39/20,538.92
  6. Step 6: Final answer
    x = 7,434.73

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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.