Home / 20,349.43-28,086.29-13,993.27

Finding the Fourth Proportional to 20,349.43, 28,086.29 and 13,993.27

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Solution

The fourth proportional to 20,349.43, 28,086.29 and 13,993.27 is: 19,313.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,349.43 : 28,086.29 = 13,993.27 : x
  2. Step 2: Convert to fraction form
    20,349.43/28,086.29 = 13,993.27/x
  3. Step 3: Cross multiply
    20,349.43x = 28,086.29 × 13,993.27
  4. Step 4: Simplify right side
    20,349.43x = 393,019,039.27
  5. Step 5: Solve for x
    x = 393,019,039.27/20,349.43
  6. Step 6: Final answer
    x = 19,313.52

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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.