Home / 28,823.10-43,210.65-12,195.90

Finding the Fourth Proportional to 28,823.10, 43,210.65 and 12,195.90

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Solution

The fourth proportional to 28,823.10, 43,210.65 and 12,195.90 is: 18,283.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,823.10 : 43,210.65 = 12,195.90 : x
  2. Step 2: Convert to fraction form
    28,823.10/43,210.65 = 12,195.90/x
  3. Step 3: Cross multiply
    28,823.10x = 43,210.65 × 12,195.90
  4. Step 4: Simplify right side
    28,823.10x = 526,992,766.34
  5. Step 5: Solve for x
    x = 526,992,766.34/28,823.10
  6. Step 6: Final answer
    x = 18,283.69

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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.