Home / 30,997.14-42,776.82-16,850.76

Finding the Fourth Proportional to 30,997.14, 42,776.82 and 16,850.76

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Solution

The fourth proportional to 30,997.14, 42,776.82 and 16,850.76 is: 23,254.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,997.14 : 42,776.82 = 16,850.76 : x
  2. Step 2: Convert to fraction form
    30,997.14/42,776.82 = 16,850.76/x
  3. Step 3: Cross multiply
    30,997.14x = 42,776.82 × 16,850.76
  4. Step 4: Simplify right side
    30,997.14x = 720,821,927.38
  5. Step 5: Solve for x
    x = 720,821,927.38/30,997.14
  6. Step 6: Final answer
    x = 23,254.47

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Half scale
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Double scale
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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.