Home / 13,631.04-20,446.50-3,770.30

Finding the Fourth Proportional to 13,631.04, 20,446.50 and 3,770.30

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Solution

The fourth proportional to 13,631.04, 20,446.50 and 3,770.30 is: 5,655.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,631.04 : 20,446.50 = 3,770.30 : x
  2. Step 2: Convert to fraction form
    13,631.04/20,446.50 = 3,770.30/x
  3. Step 3: Cross multiply
    13,631.04x = 20,446.50 × 3,770.30
  4. Step 4: Simplify right side
    13,631.04x = 77,089,438.95
  5. Step 5: Solve for x
    x = 77,089,438.95/13,631.04
  6. Step 6: Final answer
    x = 5,655.43

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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.