Home / 18,903.28-28,296.60-17,290.48

Finding the Fourth Proportional to 18,903.28, 28,296.60 and 17,290.48

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Solution

The fourth proportional to 18,903.28, 28,296.60 and 17,290.48 is: 25,882.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,903.28 : 28,296.60 = 17,290.48 : x
  2. Step 2: Convert to fraction form
    18,903.28/28,296.60 = 17,290.48/x
  3. Step 3: Cross multiply
    18,903.28x = 28,296.60 × 17,290.48
  4. Step 4: Simplify right side
    18,903.28x = 489,261,796.37
  5. Step 5: Solve for x
    x = 489,261,796.37/18,903.28
  6. Step 6: Final answer
    x = 25,882.38

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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.