Home / 19,108.12-28,621.80-12,084.52

Finding the Fourth Proportional to 19,108.12, 28,621.80 and 12,084.52

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Solution

The fourth proportional to 19,108.12, 28,621.80 and 12,084.52 is: 18,101.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,108.12 : 28,621.80 = 12,084.52 : x
  2. Step 2: Convert to fraction form
    19,108.12/28,621.80 = 12,084.52/x
  3. Step 3: Cross multiply
    19,108.12x = 28,621.80 × 12,084.52
  4. Step 4: Simplify right side
    19,108.12x = 345,880,714.54
  5. Step 5: Solve for x
    x = 345,880,714.54/19,108.12
  6. Step 6: Final answer
    x = 18,101.24

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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.