Home / 28,804.78-43,216.08-12,172.24

Finding the Fourth Proportional to 28,804.78, 43,216.08 and 12,172.24

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Solution

The fourth proportional to 28,804.78, 43,216.08 and 12,172.24 is: 18,262.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,804.78 : 43,216.08 = 12,172.24 : x
  2. Step 2: Convert to fraction form
    28,804.78/43,216.08 = 12,172.24/x
  3. Step 3: Cross multiply
    28,804.78x = 43,216.08 × 12,172.24
  4. Step 4: Simplify right side
    28,804.78x = 526,036,497.62
  5. Step 5: Solve for x
    x = 526,036,497.62/28,804.78
  6. Step 6: Final answer
    x = 18,262.13

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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.