Home / 30,896.97-42,638.09-16,749.84

Finding the Fourth Proportional to 30,896.97, 42,638.09 and 16,749.84

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Solution

The fourth proportional to 30,896.97, 42,638.09 and 16,749.84 is: 23,114.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,896.97 : 42,638.09 = 16,749.84 : x
  2. Step 2: Convert to fraction form
    30,896.97/42,638.09 = 16,749.84/x
  3. Step 3: Cross multiply
    30,896.97x = 42,638.09 × 16,749.84
  4. Step 4: Simplify right side
    30,896.97x = 714,181,185.41
  5. Step 5: Solve for x
    x = 714,181,185.41/30,896.97
  6. Step 6: Final answer
    x = 23,114.93

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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.