Home / 39,205.75-54,104.40-21,301.03

Finding the Fourth Proportional to 39,205.75, 54,104.40 and 21,301.03

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Solution

The fourth proportional to 39,205.75, 54,104.40 and 21,301.03 is: 29,395.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,205.75 : 54,104.40 = 21,301.03 : x
  2. Step 2: Convert to fraction form
    39,205.75/54,104.40 = 21,301.03/x
  3. Step 3: Cross multiply
    39,205.75x = 54,104.40 × 21,301.03
  4. Step 4: Simplify right side
    39,205.75x = 1,152,479,447.53
  5. Step 5: Solve for x
    x = 1,152,479,447.53/39,205.75
  6. Step 6: Final answer
    x = 29,395.67

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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.