Home / 30,997.59-42,777.14-16,850.45

Finding the Fourth Proportional to 30,997.59, 42,777.14 and 16,850.45

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Solution

The fourth proportional to 30,997.59, 42,777.14 and 16,850.45 is: 23,253.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,997.59 : 42,777.14 = 16,850.45 : x
  2. Step 2: Convert to fraction form
    30,997.59/42,777.14 = 16,850.45/x
  3. Step 3: Cross multiply
    30,997.59x = 42,777.14 × 16,850.45
  4. Step 4: Simplify right side
    30,997.59x = 720,813,760.58
  5. Step 5: Solve for x
    x = 720,813,760.58/30,997.59
  6. Step 6: Final answer
    x = 23,253.86

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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.