Home / 30,230.53-45,270.38-19,103.65

Finding the Fourth Proportional to 30,230.53, 45,270.38 and 19,103.65

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Solution

The fourth proportional to 30,230.53, 45,270.38 and 19,103.65 is: 28,607.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,230.53 : 45,270.38 = 19,103.65 : x
  2. Step 2: Convert to fraction form
    30,230.53/45,270.38 = 19,103.65/x
  3. Step 3: Cross multiply
    30,230.53x = 45,270.38 × 19,103.65
  4. Step 4: Simplify right side
    30,230.53x = 864,829,399.37
  5. Step 5: Solve for x
    x = 864,829,399.37/30,230.53
  6. Step 6: Final answer
    x = 28,607.81

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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.