Home / 17,142.68-23,670.32-13,157.48

Finding the Fourth Proportional to 17,142.68, 23,670.32 and 13,157.48

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Solution

The fourth proportional to 17,142.68, 23,670.32 and 13,157.48 is: 18,167.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,142.68 : 23,670.32 = 13,157.48 : x
  2. Step 2: Convert to fraction form
    17,142.68/23,670.32 = 13,157.48/x
  3. Step 3: Cross multiply
    17,142.68x = 23,670.32 × 13,157.48
  4. Step 4: Simplify right side
    17,142.68x = 311,441,761.99
  5. Step 5: Solve for x
    x = 311,441,761.99/17,142.68
  6. Step 6: Final answer
    x = 18,167.62

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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.