Home / 28,394.25-39,183.60-15,473.70

Finding the Fourth Proportional to 28,394.25, 39,183.60 and 15,473.70

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Solution

The fourth proportional to 28,394.25, 39,183.60 and 15,473.70 is: 21,353.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,394.25 : 39,183.60 = 15,473.70 : x
  2. Step 2: Convert to fraction form
    28,394.25/39,183.60 = 15,473.70/x
  3. Step 3: Cross multiply
    28,394.25x = 39,183.60 × 15,473.70
  4. Step 4: Simplify right side
    28,394.25x = 606,315,285.83
  5. Step 5: Solve for x
    x = 606,315,285.83/28,394.25
  6. Step 6: Final answer
    x = 21,353.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.