Home / 20,631.83-30,942.75-9,527.84

Finding the Fourth Proportional to 20,631.83, 30,942.75 and 9,527.84

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Solution

The fourth proportional to 20,631.83, 30,942.75 and 9,527.84 is: 14,289.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,631.83 : 30,942.75 = 9,527.84 : x
  2. Step 2: Convert to fraction form
    20,631.83/30,942.75 = 9,527.84/x
  3. Step 3: Cross multiply
    20,631.83x = 30,942.75 × 9,527.84
  4. Step 4: Simplify right side
    20,631.83x = 294,817,416.45
  5. Step 5: Solve for x
    x = 294,817,416.45/20,631.83
  6. Step 6: Final answer
    x = 14,289.45

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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.