Home / 30,120.05-41,564.54-16,690.96

Finding the Fourth Proportional to 30,120.05, 41,564.54 and 16,690.96

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Solution

The fourth proportional to 30,120.05, 41,564.54 and 16,690.96 is: 23,032.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,120.05 : 41,564.54 = 16,690.96 : x
  2. Step 2: Convert to fraction form
    30,120.05/41,564.54 = 16,690.96/x
  3. Step 3: Cross multiply
    30,120.05x = 41,564.54 × 16,690.96
  4. Step 4: Simplify right side
    30,120.05x = 693,752,168.24
  5. Step 5: Solve for x
    x = 693,752,168.24/30,120.05
  6. Step 6: Final answer
    x = 23,032.90

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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.