Home / 39,571.13-54,607.96-21,665.81

Finding the Fourth Proportional to 39,571.13, 54,607.96 and 21,665.81

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Solution

The fourth proportional to 39,571.13, 54,607.96 and 21,665.81 is: 29,898.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,571.13 : 54,607.96 = 21,665.81 : x
  2. Step 2: Convert to fraction form
    39,571.13/54,607.96 = 21,665.81/x
  3. Step 3: Cross multiply
    39,571.13x = 54,607.96 × 21,665.81
  4. Step 4: Simplify right side
    39,571.13x = 1,183,125,685.85
  5. Step 5: Solve for x
    x = 1,183,125,685.85/39,571.13
  6. Step 6: Final answer
    x = 29,898.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.