Home / 19,230.24-28,845.60-7,384.80

Finding the Fourth Proportional to 19,230.24, 28,845.60 and 7,384.80

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Solution

The fourth proportional to 19,230.24, 28,845.60 and 7,384.80 is: 11,077.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,230.24 : 28,845.60 = 7,384.80 : x
  2. Step 2: Convert to fraction form
    19,230.24/28,845.60 = 7,384.80/x
  3. Step 3: Cross multiply
    19,230.24x = 28,845.60 × 7,384.80
  4. Step 4: Simplify right side
    19,230.24x = 213,018,986.88
  5. Step 5: Solve for x
    x = 213,018,986.88/19,230.24
  6. Step 6: Final answer
    x = 11,077.29

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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.