Home / 28,181.37-42,287.61-15,708.42

Finding the Fourth Proportional to 28,181.37, 42,287.61 and 15,708.42

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Solution

The fourth proportional to 28,181.37, 42,287.61 and 15,708.42 is: 23,571.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,181.37 : 42,287.61 = 15,708.42 : x
  2. Step 2: Convert to fraction form
    28,181.37/42,287.61 = 15,708.42/x
  3. Step 3: Cross multiply
    28,181.37x = 42,287.61 × 15,708.42
  4. Step 4: Simplify right side
    28,181.37x = 664,271,327.24
  5. Step 5: Solve for x
    x = 664,271,327.24/28,181.37
  6. Step 6: Final answer
    x = 23,571.29

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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.