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Finding the Fourth Proportional to 31,002.60, 43,481.40 and 31,002.60

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Solution

The fourth proportional to 31,002.60, 43,481.40 and 31,002.60 is: 43,481.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,002.60 : 43,481.40 = 31,002.60 : x
  2. Step 2: Convert to fraction form
    31,002.60/43,481.40 = 31,002.60/x
  3. Step 3: Cross multiply
    31,002.60x = 43,481.40 × 31,002.60
  4. Step 4: Simplify right side
    31,002.60x = 1,348,036,451.64
  5. Step 5: Solve for x
    x = 1,348,036,451.64/31,002.60
  6. Step 6: Final answer
    x = 43,481.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.