Home / 30,670.92-42,324.75-17,243.42

Finding the Fourth Proportional to 30,670.92, 42,324.75 and 17,243.42

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Solution

The fourth proportional to 30,670.92, 42,324.75 and 17,243.42 is: 23,795.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,670.92 : 42,324.75 = 17,243.42 : x
  2. Step 2: Convert to fraction form
    30,670.92/42,324.75 = 17,243.42/x
  3. Step 3: Cross multiply
    30,670.92x = 42,324.75 × 17,243.42
  4. Step 4: Simplify right side
    30,670.92x = 729,823,229.02
  5. Step 5: Solve for x
    x = 729,823,229.02/30,670.92
  6. Step 6: Final answer
    x = 23,795.28

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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.