Home / 28,219.21-42,291.67-15,745.11

Finding the Fourth Proportional to 28,219.21, 42,291.67 and 15,745.11

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Solution

The fourth proportional to 28,219.21, 42,291.67 and 15,745.11 is: 23,596.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,219.21 : 42,291.67 = 15,745.11 : x
  2. Step 2: Convert to fraction form
    28,219.21/42,291.67 = 15,745.11/x
  3. Step 3: Cross multiply
    28,219.21x = 42,291.67 × 15,745.11
  4. Step 4: Simplify right side
    28,219.21x = 665,886,996.23
  5. Step 5: Solve for x
    x = 665,886,996.23/28,219.21
  6. Step 6: Final answer
    x = 23,596.94

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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.