Home / 20,714.04-28,585.44-12,330

Finding the Fourth Proportional to 20,714.04, 28,585.44 and 12,330

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Solution

The fourth proportional to 20,714.04, 28,585.44 and 12,330 is: 17,015.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,714.04 : 28,585.44 = 12,330 : x
  2. Step 2: Convert to fraction form
    20,714.04/28,585.44 = 12,330/x
  3. Step 3: Cross multiply
    20,714.04x = 28,585.44 × 12,330
  4. Step 4: Simplify right side
    20,714.04x = 352,458,475.20
  5. Step 5: Solve for x
    x = 352,458,475.20/20,714.04
  6. Step 6: Final answer
    x = 17,015.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.