Home / 39,313.59-54,251.49-21,408.45

Finding the Fourth Proportional to 39,313.59, 54,251.49 and 21,408.45

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Solution

The fourth proportional to 39,313.59, 54,251.49 and 21,408.45 is: 29,542.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,313.59 : 54,251.49 = 21,408.45 : x
  2. Step 2: Convert to fraction form
    39,313.59/54,251.49 = 21,408.45/x
  3. Step 3: Cross multiply
    39,313.59x = 54,251.49 × 21,408.45
  4. Step 4: Simplify right side
    39,313.59x = 1,161,440,311.09
  5. Step 5: Solve for x
    x = 1,161,440,311.09/39,313.59
  6. Step 6: Final answer
    x = 29,542.97

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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.