Home / 30,600.75-42,228.49-17,170.95

Finding the Fourth Proportional to 30,600.75, 42,228.49 and 17,170.95

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Solution

The fourth proportional to 30,600.75, 42,228.49 and 17,170.95 is: 23,695.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,600.75 : 42,228.49 = 17,170.95 : x
  2. Step 2: Convert to fraction form
    30,600.75/42,228.49 = 17,170.95/x
  3. Step 3: Cross multiply
    30,600.75x = 42,228.49 × 17,170.95
  4. Step 4: Simplify right side
    30,600.75x = 725,103,437.99
  5. Step 5: Solve for x
    x = 725,103,437.99/30,600.75
  6. Step 6: Final answer
    x = 23,695.61

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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.