Home / 43,731.40-65,590.06-12,559.56

Finding the Fourth Proportional to 43,731.40, 65,590.06 and 12,559.56

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Solution

The fourth proportional to 43,731.40, 65,590.06 and 12,559.56 is: 18,837.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,731.40 : 65,590.06 = 12,559.56 : x
  2. Step 2: Convert to fraction form
    43,731.40/65,590.06 = 12,559.56/x
  3. Step 3: Cross multiply
    43,731.40x = 65,590.06 × 12,559.56
  4. Step 4: Simplify right side
    43,731.40x = 823,782,293.97
  5. Step 5: Solve for x
    x = 823,782,293.97/43,731.40
  6. Step 6: Final answer
    x = 18,837.32

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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.