Home / 30,185.72-41,661.28-16,761.28

Finding the Fourth Proportional to 30,185.72, 41,661.28 and 16,761.28

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Solution

The fourth proportional to 30,185.72, 41,661.28 and 16,761.28 is: 23,133.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,185.72 : 41,661.28 = 16,761.28 : x
  2. Step 2: Convert to fraction form
    30,185.72/41,661.28 = 16,761.28/x
  3. Step 3: Cross multiply
    30,185.72x = 41,661.28 × 16,761.28
  4. Step 4: Simplify right side
    30,185.72x = 698,296,379.24
  5. Step 5: Solve for x
    x = 698,296,379.24/30,185.72
  6. Step 6: Final answer
    x = 23,133.34

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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.