Home / 28,219.20-42,291.66-15,745.10

Finding the Fourth Proportional to 28,219.20, 42,291.66 and 15,745.10

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Solution

The fourth proportional to 28,219.20, 42,291.66 and 15,745.10 is: 23,596.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,219.20 : 42,291.66 = 15,745.10 : x
  2. Step 2: Convert to fraction form
    28,219.20/42,291.66 = 15,745.10/x
  3. Step 3: Cross multiply
    28,219.20x = 42,291.66 × 15,745.10
  4. Step 4: Simplify right side
    28,219.20x = 665,886,415.87
  5. Step 5: Solve for x
    x = 665,886,415.87/28,219.20
  6. Step 6: Final answer
    x = 23,596.93

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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.