Home / 39,401.89-54,374.49-21,496.91

Finding the Fourth Proportional to 39,401.89, 54,374.49 and 21,496.91

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Solution

The fourth proportional to 39,401.89, 54,374.49 and 21,496.91 is: 29,665.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,401.89 : 54,374.49 = 21,496.91 : x
  2. Step 2: Convert to fraction form
    39,401.89/54,374.49 = 21,496.91/x
  3. Step 3: Cross multiply
    39,401.89x = 54,374.49 × 21,496.91
  4. Step 4: Simplify right side
    39,401.89x = 1,168,883,245.95
  5. Step 5: Solve for x
    x = 1,168,883,245.95/39,401.89
  6. Step 6: Final answer
    x = 29,665.67

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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.