Home / 19,238.41-28,860.65-8,145.16

Finding the Fourth Proportional to 19,238.41, 28,860.65 and 8,145.16

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Solution

The fourth proportional to 19,238.41, 28,860.65 and 8,145.16 is: 12,219.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,238.41 : 28,860.65 = 8,145.16 : x
  2. Step 2: Convert to fraction form
    19,238.41/28,860.65 = 8,145.16/x
  3. Step 3: Cross multiply
    19,238.41x = 28,860.65 × 8,145.16
  4. Step 4: Simplify right side
    19,238.41x = 235,074,571.23
  5. Step 5: Solve for x
    x = 235,074,571.23/19,238.41
  6. Step 6: Final answer
    x = 12,219.02

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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.