Home / 39,313.28-54,252.34-21,408.28

Finding the Fourth Proportional to 39,313.28, 54,252.34 and 21,408.28

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Solution

The fourth proportional to 39,313.28, 54,252.34 and 21,408.28 is: 29,543.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,313.28 : 54,252.34 = 21,408.28 : x
  2. Step 2: Convert to fraction form
    39,313.28/54,252.34 = 21,408.28/x
  3. Step 3: Cross multiply
    39,313.28x = 54,252.34 × 21,408.28
  4. Step 4: Simplify right side
    39,313.28x = 1,161,449,285.38
  5. Step 5: Solve for x
    x = 1,161,449,285.38/39,313.28
  6. Step 6: Final answer
    x = 29,543.43

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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.