Home / 20,057.28-27,683.69-13,343.19

Finding the Fourth Proportional to 20,057.28, 27,683.69 and 13,343.19

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Solution

The fourth proportional to 20,057.28, 27,683.69 and 13,343.19 is: 18,416.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,057.28 : 27,683.69 = 13,343.19 : x
  2. Step 2: Convert to fraction form
    20,057.28/27,683.69 = 13,343.19/x
  3. Step 3: Cross multiply
    20,057.28x = 27,683.69 × 13,343.19
  4. Step 4: Simplify right side
    20,057.28x = 369,388,735.57
  5. Step 5: Solve for x
    x = 369,388,735.57/20,057.28
  6. Step 6: Final answer
    x = 18,416.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.