Home / 39,313.63-54,251.17-21,408.59

Finding the Fourth Proportional to 39,313.63, 54,251.17 and 21,408.59

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Solution

The fourth proportional to 39,313.63, 54,251.17 and 21,408.59 is: 29,542.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,313.63 : 54,251.17 = 21,408.59 : x
  2. Step 2: Convert to fraction form
    39,313.63/54,251.17 = 21,408.59/x
  3. Step 3: Cross multiply
    39,313.63x = 54,251.17 × 21,408.59
  4. Step 4: Simplify right side
    39,313.63x = 1,161,441,055.55
  5. Step 5: Solve for x
    x = 1,161,441,055.55/39,313.63
  6. Step 6: Final answer
    x = 29,542.96

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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.