Home / 30,109.08-41,548.09-16,680.90

Finding the Fourth Proportional to 30,109.08, 41,548.09 and 16,680.90

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Solution

The fourth proportional to 30,109.08, 41,548.09 and 16,680.90 is: 23,018.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,109.08 : 41,548.09 = 16,680.90 : x
  2. Step 2: Convert to fraction form
    30,109.08/41,548.09 = 16,680.90/x
  3. Step 3: Cross multiply
    30,109.08x = 41,548.09 × 16,680.90
  4. Step 4: Simplify right side
    30,109.08x = 693,059,451.08
  5. Step 5: Solve for x
    x = 693,059,451.08/30,109.08
  6. Step 6: Final answer
    x = 23,018.29

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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.