Home / 30,716.08-42,388.14-17,287.43

Finding the Fourth Proportional to 30,716.08, 42,388.14 and 17,287.43

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Solution

The fourth proportional to 30,716.08, 42,388.14 and 17,287.43 is: 23,856.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,716.08 : 42,388.14 = 17,287.43 : x
  2. Step 2: Convert to fraction form
    30,716.08/42,388.14 = 17,287.43/x
  3. Step 3: Cross multiply
    30,716.08x = 42,388.14 × 17,287.43
  4. Step 4: Simplify right side
    30,716.08x = 732,782,003.08
  5. Step 5: Solve for x
    x = 732,782,003.08/30,716.08
  6. Step 6: Final answer
    x = 23,856.63

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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.