Home / 30,806.21-42,512.83-17,008.99

Finding the Fourth Proportional to 30,806.21, 42,512.83 and 17,008.99

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Solution

The fourth proportional to 30,806.21, 42,512.83 and 17,008.99 is: 23,472.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,806.21 : 42,512.83 = 17,008.99 : x
  2. Step 2: Convert to fraction form
    30,806.21/42,512.83 = 17,008.99/x
  3. Step 3: Cross multiply
    30,806.21x = 42,512.83 × 17,008.99
  4. Step 4: Simplify right side
    30,806.21x = 723,100,151.54
  5. Step 5: Solve for x
    x = 723,100,151.54/30,806.21
  6. Step 6: Final answer
    x = 23,472.54

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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.