Home / 39,028.53-53,859.51-21,123.53

Finding the Fourth Proportional to 39,028.53, 53,859.51 and 21,123.53

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Solution

The fourth proportional to 39,028.53, 53,859.51 and 21,123.53 is: 29,150.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,028.53 : 53,859.51 = 21,123.53 : x
  2. Step 2: Convert to fraction form
    39,028.53/53,859.51 = 21,123.53/x
  3. Step 3: Cross multiply
    39,028.53x = 53,859.51 × 21,123.53
  4. Step 4: Simplify right side
    39,028.53x = 1,137,702,705.97
  5. Step 5: Solve for x
    x = 1,137,702,705.97/39,028.53
  6. Step 6: Final answer
    x = 29,150.54

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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.