Home / 43,222-64,840.85-21,035.39

Finding the Fourth Proportional to 43,222, 64,840.85 and 21,035.39

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Solution

The fourth proportional to 43,222, 64,840.85 and 21,035.39 is: 31,556.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,222 : 64,840.85 = 21,035.39 : x
  2. Step 2: Convert to fraction form
    43,222/64,840.85 = 21,035.39/x
  3. Step 3: Cross multiply
    43,222x = 64,840.85 × 21,035.39
  4. Step 4: Simplify right side
    43,222x = 1,363,952,567.68
  5. Step 5: Solve for x
    x = 1,363,952,567.68/43,222
  6. Step 6: Final answer
    x = 31,556.91

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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.