Home / 39,202.48-54,099.49-21,297.50

Finding the Fourth Proportional to 39,202.48, 54,099.49 and 21,297.50

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Solution

The fourth proportional to 39,202.48, 54,099.49 and 21,297.50 is: 29,390.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,202.48 : 54,099.49 = 21,297.50 : x
  2. Step 2: Convert to fraction form
    39,202.48/54,099.49 = 21,297.50/x
  3. Step 3: Cross multiply
    39,202.48x = 54,099.49 × 21,297.50
  4. Step 4: Simplify right side
    39,202.48x = 1,152,183,781.79
  5. Step 5: Solve for x
    x = 1,152,183,781.79/39,202.48
  6. Step 6: Final answer
    x = 29,390.59

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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.