Home / 39,529.09-54,549.96-21,379.83

Finding the Fourth Proportional to 39,529.09, 54,549.96 and 21,379.83

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Solution

The fourth proportional to 39,529.09, 54,549.96 and 21,379.83 is: 29,504.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,529.09 : 54,549.96 = 21,379.83 : x
  2. Step 2: Convert to fraction form
    39,529.09/54,549.96 = 21,379.83/x
  3. Step 3: Cross multiply
    39,529.09x = 54,549.96 × 21,379.83
  4. Step 4: Simplify right side
    39,529.09x = 1,166,268,861.17
  5. Step 5: Solve for x
    x = 1,166,268,861.17/39,529.09
  6. Step 6: Final answer
    x = 29,504.07

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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.