Home / 30,976.98-42,747.13-16,829.54

Finding the Fourth Proportional to 30,976.98, 42,747.13 and 16,829.54

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Solution

The fourth proportional to 30,976.98, 42,747.13 and 16,829.54 is: 23,224.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,976.98 : 42,747.13 = 16,829.54 : x
  2. Step 2: Convert to fraction form
    30,976.98/42,747.13 = 16,829.54/x
  3. Step 3: Cross multiply
    30,976.98x = 42,747.13 × 16,829.54
  4. Step 4: Simplify right side
    30,976.98x = 719,414,534.22
  5. Step 5: Solve for x
    x = 719,414,534.22/30,976.98
  6. Step 6: Final answer
    x = 23,224.17

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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.