Home / 39,028.32-53,858.97-21,123.32

Finding the Fourth Proportional to 39,028.32, 53,858.97 and 21,123.32

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Solution

The fourth proportional to 39,028.32, 53,858.97 and 21,123.32 is: 29,150.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,028.32 : 53,858.97 = 21,123.32 : x
  2. Step 2: Convert to fraction form
    39,028.32/53,858.97 = 21,123.32/x
  3. Step 3: Cross multiply
    39,028.32x = 53,858.97 × 21,123.32
  4. Step 4: Simplify right side
    39,028.32x = 1,137,679,988.89
  5. Step 5: Solve for x
    x = 1,137,679,988.89/39,028.32
  6. Step 6: Final answer
    x = 29,150.11

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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.