Home / 43,291.20-64,917.60-19,924.80

Finding the Fourth Proportional to 43,291.20, 64,917.60 and 19,924.80

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Solution

The fourth proportional to 43,291.20, 64,917.60 and 19,924.80 is: 29,878.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,291.20 : 64,917.60 = 19,924.80 : x
  2. Step 2: Convert to fraction form
    43,291.20/64,917.60 = 19,924.80/x
  3. Step 3: Cross multiply
    43,291.20x = 64,917.60 × 19,924.80
  4. Step 4: Simplify right side
    43,291.20x = 1,293,470,196.48
  5. Step 5: Solve for x
    x = 1,293,470,196.48/43,291.20
  6. Step 6: Final answer
    x = 29,878.36

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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.