Home / 39,194.70-54,088.47-21,289.56

Finding the Fourth Proportional to 39,194.70, 54,088.47 and 21,289.56

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Solution

The fourth proportional to 39,194.70, 54,088.47 and 21,289.56 is: 29,379.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,194.70 : 54,088.47 = 21,289.56 : x
  2. Step 2: Convert to fraction form
    39,194.70/54,088.47 = 21,289.56/x
  3. Step 3: Cross multiply
    39,194.70x = 54,088.47 × 21,289.56
  4. Step 4: Simplify right side
    39,194.70x = 1,151,519,727.37
  5. Step 5: Solve for x
    x = 1,151,519,727.37/39,194.70
  6. Step 6: Final answer
    x = 29,379.48

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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.