Home / 30,190.80-41,662.72-16,761.36

Finding the Fourth Proportional to 30,190.80, 41,662.72 and 16,761.36

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Solution

The fourth proportional to 30,190.80, 41,662.72 and 16,761.36 is: 23,130.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,190.80 : 41,662.72 = 16,761.36 : x
  2. Step 2: Convert to fraction form
    30,190.80/41,662.72 = 16,761.36/x
  3. Step 3: Cross multiply
    30,190.80x = 41,662.72 × 16,761.36
  4. Step 4: Simplify right side
    30,190.80x = 698,323,848.50
  5. Step 5: Solve for x
    x = 698,323,848.50/30,190.80
  6. Step 6: Final answer
    x = 23,130.35

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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.