Home / 30,122.37-45,190.71-10,401.09

Finding the Fourth Proportional to 30,122.37, 45,190.71 and 10,401.09

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Solution

The fourth proportional to 30,122.37, 45,190.71 and 10,401.09 is: 15,604.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,122.37 : 45,190.71 = 10,401.09 : x
  2. Step 2: Convert to fraction form
    30,122.37/45,190.71 = 10,401.09/x
  3. Step 3: Cross multiply
    30,122.37x = 45,190.71 × 10,401.09
  4. Step 4: Simplify right side
    30,122.37x = 470,032,641.87
  5. Step 5: Solve for x
    x = 470,032,641.87/30,122.37
  6. Step 6: Final answer
    x = 15,604.11

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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.