Home / 39,313.76-54,252.48-21,408.56

Finding the Fourth Proportional to 39,313.76, 54,252.48 and 21,408.56

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Solution

The fourth proportional to 39,313.76, 54,252.48 and 21,408.56 is: 29,543.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,313.76 : 54,252.48 = 21,408.56 : x
  2. Step 2: Convert to fraction form
    39,313.76/54,252.48 = 21,408.56/x
  3. Step 3: Cross multiply
    39,313.76x = 54,252.48 × 21,408.56
  4. Step 4: Simplify right side
    39,313.76x = 1,161,467,473.23
  5. Step 5: Solve for x
    x = 1,161,467,473.23/39,313.76
  6. Step 6: Final answer
    x = 29,543.54

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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.