Home / 39,401.46-54,372.11-21,495.39

Finding the Fourth Proportional to 39,401.46, 54,372.11 and 21,495.39

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Solution

The fourth proportional to 39,401.46, 54,372.11 and 21,495.39 is: 29,662.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,401.46 : 54,372.11 = 21,495.39 : x
  2. Step 2: Convert to fraction form
    39,401.46/54,372.11 = 21,495.39/x
  3. Step 3: Cross multiply
    39,401.46x = 54,372.11 × 21,495.39
  4. Step 4: Simplify right side
    39,401.46x = 1,168,749,709.57
  5. Step 5: Solve for x
    x = 1,168,749,709.57/39,401.46
  6. Step 6: Final answer
    x = 29,662.60

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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.