Home / 20,045.28-30,082.50-8,964.48

Finding the Fourth Proportional to 20,045.28, 30,082.50 and 8,964.48

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Solution

The fourth proportional to 20,045.28, 30,082.50 and 8,964.48 is: 13,453.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,045.28 : 30,082.50 = 8,964.48 : x
  2. Step 2: Convert to fraction form
    20,045.28/30,082.50 = 8,964.48/x
  3. Step 3: Cross multiply
    20,045.28x = 30,082.50 × 8,964.48
  4. Step 4: Simplify right side
    20,045.28x = 269,673,969.60
  5. Step 5: Solve for x
    x = 269,673,969.60/20,045.28
  6. Step 6: Final answer
    x = 13,453.24

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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.