Home / 43,323.78-64,987.96-13,743.90

Finding the Fourth Proportional to 43,323.78, 64,987.96 and 13,743.90

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Solution

The fourth proportional to 43,323.78, 64,987.96 and 13,743.90 is: 20,616.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,323.78 : 64,987.96 = 13,743.90 : x
  2. Step 2: Convert to fraction form
    43,323.78/64,987.96 = 13,743.90/x
  3. Step 3: Cross multiply
    43,323.78x = 64,987.96 × 13,743.90
  4. Step 4: Simplify right side
    43,323.78x = 893,188,023.44
  5. Step 5: Solve for x
    x = 893,188,023.44/43,323.78
  6. Step 6: Final answer
    x = 20,616.58

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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.