Home / 17,720.91-26,372.18-17,130.33

Finding the Fourth Proportional to 17,720.91, 26,372.18 and 17,130.33

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Solution

The fourth proportional to 17,720.91, 26,372.18 and 17,130.33 is: 25,493.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,720.91 : 26,372.18 = 17,130.33 : x
  2. Step 2: Convert to fraction form
    17,720.91/26,372.18 = 17,130.33/x
  3. Step 3: Cross multiply
    17,720.91x = 26,372.18 × 17,130.33
  4. Step 4: Simplify right side
    17,720.91x = 451,764,189.05
  5. Step 5: Solve for x
    x = 451,764,189.05/17,720.91
  6. Step 6: Final answer
    x = 25,493.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.