Home / 19,268.40-28,870.20-15,963.60

Finding the Fourth Proportional to 19,268.40, 28,870.20 and 15,963.60

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Solution

The fourth proportional to 19,268.40, 28,870.20 and 15,963.60 is: 23,918.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,268.40 : 28,870.20 = 15,963.60 : x
  2. Step 2: Convert to fraction form
    19,268.40/28,870.20 = 15,963.60/x
  3. Step 3: Cross multiply
    19,268.40x = 28,870.20 × 15,963.60
  4. Step 4: Simplify right side
    19,268.40x = 460,872,324.72
  5. Step 5: Solve for x
    x = 460,872,324.72/19,268.40
  6. Step 6: Final answer
    x = 23,918.56

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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.