Home / 31,083.79-42,895.64-16,936.64

Finding the Fourth Proportional to 31,083.79, 42,895.64 and 16,936.64

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Solution

The fourth proportional to 31,083.79, 42,895.64 and 16,936.64 is: 23,372.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,083.79 : 42,895.64 = 16,936.64 : x
  2. Step 2: Convert to fraction form
    31,083.79/42,895.64 = 16,936.64/x
  3. Step 3: Cross multiply
    31,083.79x = 42,895.64 × 16,936.64
  4. Step 4: Simplify right side
    31,083.79x = 726,507,713.09
  5. Step 5: Solve for x
    x = 726,507,713.09/31,083.79
  6. Step 6: Final answer
    x = 23,372.56

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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.