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Finding the Fourth Proportional to 30,997.62, 46,489.43 and 8,810.51

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Solution

The fourth proportional to 30,997.62, 46,489.43 and 8,810.51 is: 13,213.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,997.62 : 46,489.43 = 8,810.51 : x
  2. Step 2: Convert to fraction form
    30,997.62/46,489.43 = 8,810.51/x
  3. Step 3: Cross multiply
    30,997.62x = 46,489.43 × 8,810.51
  4. Step 4: Simplify right side
    30,997.62x = 409,595,377.49
  5. Step 5: Solve for x
    x = 409,595,377.49/30,997.62
  6. Step 6: Final answer
    x = 13,213.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.