Home / 30,997.28-42,776.24-16,850.16

Finding the Fourth Proportional to 30,997.28, 42,776.24 and 16,850.16

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Solution

The fourth proportional to 30,997.28, 42,776.24 and 16,850.16 is: 23,253.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,997.28 : 42,776.24 = 16,850.16 : x
  2. Step 2: Convert to fraction form
    30,997.28/42,776.24 = 16,850.16/x
  3. Step 3: Cross multiply
    30,997.28x = 42,776.24 × 16,850.16
  4. Step 4: Simplify right side
    30,997.28x = 720,786,488.20
  5. Step 5: Solve for x
    x = 720,786,488.20/30,997.28
  6. Step 6: Final answer
    x = 23,253.22

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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.