Home / 30,546.78-45,836.97-12,790.16

Finding the Fourth Proportional to 30,546.78, 45,836.97 and 12,790.16

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Solution

The fourth proportional to 30,546.78, 45,836.97 and 12,790.16 is: 19,192.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,546.78 : 45,836.97 = 12,790.16 : x
  2. Step 2: Convert to fraction form
    30,546.78/45,836.97 = 12,790.16/x
  3. Step 3: Cross multiply
    30,546.78x = 45,836.97 × 12,790.16
  4. Step 4: Simplify right side
    30,546.78x = 586,262,180.22
  5. Step 5: Solve for x
    x = 586,262,180.22/30,546.78
  6. Step 6: Final answer
    x = 19,192.27

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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.