Home / 30,881.41-42,616.37-16,734.25

Finding the Fourth Proportional to 30,881.41, 42,616.37 and 16,734.25

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Solution

The fourth proportional to 30,881.41, 42,616.37 and 16,734.25 is: 23,093.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,881.41 : 42,616.37 = 16,734.25 : x
  2. Step 2: Convert to fraction form
    30,881.41/42,616.37 = 16,734.25/x
  3. Step 3: Cross multiply
    30,881.41x = 42,616.37 × 16,734.25
  4. Step 4: Simplify right side
    30,881.41x = 713,153,102.98
  5. Step 5: Solve for x
    x = 713,153,102.98/30,881.41
  6. Step 6: Final answer
    x = 23,093.28

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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.