Home / 28,621.14-42,919.56-15,469.98

Finding the Fourth Proportional to 28,621.14, 42,919.56 and 15,469.98

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Solution

The fourth proportional to 28,621.14, 42,919.56 and 15,469.98 is: 23,198.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,621.14 : 42,919.56 = 15,469.98 : x
  2. Step 2: Convert to fraction form
    28,621.14/42,919.56 = 15,469.98/x
  3. Step 3: Cross multiply
    28,621.14x = 42,919.56 × 15,469.98
  4. Step 4: Simplify right side
    28,621.14x = 663,964,734.81
  5. Step 5: Solve for x
    x = 663,964,734.81/28,621.14
  6. Step 6: Final answer
    x = 23,198.40

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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.