Home / 39,028.32-53,859.24-21,123.33

Finding the Fourth Proportional to 39,028.32, 53,859.24 and 21,123.33

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Solution

The fourth proportional to 39,028.32, 53,859.24 and 21,123.33 is: 29,150.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,028.32 : 53,859.24 = 21,123.33 : x
  2. Step 2: Convert to fraction form
    39,028.32/53,859.24 = 21,123.33/x
  3. Step 3: Cross multiply
    39,028.32x = 53,859.24 × 21,123.33
  4. Step 4: Simplify right side
    39,028.32x = 1,137,686,500.07
  5. Step 5: Solve for x
    x = 1,137,686,500.07/39,028.32
  6. Step 6: Final answer
    x = 29,150.28

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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.