Home / 31,083.28-42,893.80-16,935.84

Finding the Fourth Proportional to 31,083.28, 42,893.80 and 16,935.84

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Solution

The fourth proportional to 31,083.28, 42,893.80 and 16,935.84 is: 23,370.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,083.28 : 42,893.80 = 16,935.84 : x
  2. Step 2: Convert to fraction form
    31,083.28/42,893.80 = 16,935.84/x
  3. Step 3: Cross multiply
    31,083.28x = 42,893.80 × 16,935.84
  4. Step 4: Simplify right side
    31,083.28x = 726,442,533.79
  5. Step 5: Solve for x
    x = 726,442,533.79/31,083.28
  6. Step 6: Final answer
    x = 23,370.85

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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.