Home / 30,260.94-45,393.58-8,074.20

Finding the Fourth Proportional to 30,260.94, 45,393.58 and 8,074.20

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Solution

The fourth proportional to 30,260.94, 45,393.58 and 8,074.20 is: 12,111.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,260.94 : 45,393.58 = 8,074.20 : x
  2. Step 2: Convert to fraction form
    30,260.94/45,393.58 = 8,074.20/x
  3. Step 3: Cross multiply
    30,260.94x = 45,393.58 × 8,074.20
  4. Step 4: Simplify right side
    30,260.94x = 366,516,843.64
  5. Step 5: Solve for x
    x = 366,516,843.64/30,260.94
  6. Step 6: Final answer
    x = 12,111.88

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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.