Home / 39,355.66-58,939.53-21,781.90

Finding the Fourth Proportional to 39,355.66, 58,939.53 and 21,781.90

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Solution

The fourth proportional to 39,355.66, 58,939.53 and 21,781.90 is: 32,620.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,355.66 : 58,939.53 = 21,781.90 : x
  2. Step 2: Convert to fraction form
    39,355.66/58,939.53 = 21,781.90/x
  3. Step 3: Cross multiply
    39,355.66x = 58,939.53 × 21,781.90
  4. Step 4: Simplify right side
    39,355.66x = 1,283,814,948.51
  5. Step 5: Solve for x
    x = 1,283,814,948.51/39,355.66
  6. Step 6: Final answer
    x = 32,620.85

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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.