Home / 19,285.20-28,929.60-5,433.84

Finding the Fourth Proportional to 19,285.20, 28,929.60 and 5,433.84

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Solution

The fourth proportional to 19,285.20, 28,929.60 and 5,433.84 is: 8,151.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,285.20 : 28,929.60 = 5,433.84 : x
  2. Step 2: Convert to fraction form
    19,285.20/28,929.60 = 5,433.84/x
  3. Step 3: Cross multiply
    19,285.20x = 28,929.60 × 5,433.84
  4. Step 4: Simplify right side
    19,285.20x = 157,198,817.66
  5. Step 5: Solve for x
    x = 157,198,817.66/19,285.20
  6. Step 6: Final answer
    x = 8,151.27

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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.