Home / 20,205.53-30,309.87-6,165.67

Finding the Fourth Proportional to 20,205.53, 30,309.87 and 6,165.67

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Solution

The fourth proportional to 20,205.53, 30,309.87 and 6,165.67 is: 9,248.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,205.53 : 30,309.87 = 6,165.67 : x
  2. Step 2: Convert to fraction form
    20,205.53/30,309.87 = 6,165.67/x
  3. Step 3: Cross multiply
    20,205.53x = 30,309.87 × 6,165.67
  4. Step 4: Simplify right side
    20,205.53x = 186,880,777.10
  5. Step 5: Solve for x
    x = 186,880,777.10/20,205.53
  6. Step 6: Final answer
    x = 9,248.99

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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.