Home / 30,739.70-42,418.86-17,310.17

Finding the Fourth Proportional to 30,739.70, 42,418.86 and 17,310.17

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Solution

The fourth proportional to 30,739.70, 42,418.86 and 17,310.17 is: 23,886.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,739.70 : 42,418.86 = 17,310.17 : x
  2. Step 2: Convert to fraction form
    30,739.70/42,418.86 = 17,310.17/x
  3. Step 3: Cross multiply
    30,739.70x = 42,418.86 × 17,310.17
  4. Step 4: Simplify right side
    30,739.70x = 734,277,718.94
  5. Step 5: Solve for x
    x = 734,277,718.94/30,739.70
  6. Step 6: Final answer
    x = 23,886.95

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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.