Home / 19,268.78-28,902.74-8,880.54

Finding the Fourth Proportional to 19,268.78, 28,902.74 and 8,880.54

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Solution

The fourth proportional to 19,268.78, 28,902.74 and 8,880.54 is: 13,320.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,268.78 : 28,902.74 = 8,880.54 : x
  2. Step 2: Convert to fraction form
    19,268.78/28,902.74 = 8,880.54/x
  3. Step 3: Cross multiply
    19,268.78x = 28,902.74 × 8,880.54
  4. Step 4: Simplify right side
    19,268.78x = 256,671,938.68
  5. Step 5: Solve for x
    x = 256,671,938.68/19,268.78
  6. Step 6: Final answer
    x = 13,320.61

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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.