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Finding the Fourth Proportional to 57,143.44, 85,714.24 and 15,590.44

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Solution

The fourth proportional to 57,143.44, 85,714.24 and 15,590.44 is: 23,385.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,143.44 : 85,714.24 = 15,590.44 : x
  2. Step 2: Convert to fraction form
    57,143.44/85,714.24 = 15,590.44/x
  3. Step 3: Cross multiply
    57,143.44x = 85,714.24 × 15,590.44
  4. Step 4: Simplify right side
    57,143.44x = 1,336,322,715.87
  5. Step 5: Solve for x
    x = 1,336,322,715.87/57,143.44
  6. Step 6: Final answer
    x = 23,385.41

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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.