Home / 39,789.99-54,915.48-25,683.84

Finding the Fourth Proportional to 39,789.99, 54,915.48 and 25,683.84

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Solution

The fourth proportional to 39,789.99, 54,915.48 and 25,683.84 is: 35,447.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,789.99 : 54,915.48 = 25,683.84 : x
  2. Step 2: Convert to fraction form
    39,789.99/54,915.48 = 25,683.84/x
  3. Step 3: Cross multiply
    39,789.99x = 54,915.48 × 25,683.84
  4. Step 4: Simplify right side
    39,789.99x = 1,410,440,401.84
  5. Step 5: Solve for x
    x = 1,410,440,401.84/39,789.99
  6. Step 6: Final answer
    x = 35,447.12

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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.