Home / 39,458.03-54,453.39-21,554.70

Finding the Fourth Proportional to 39,458.03, 54,453.39 and 21,554.70

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Solution

The fourth proportional to 39,458.03, 54,453.39 and 21,554.70 is: 29,746.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,458.03 : 54,453.39 = 21,554.70 : x
  2. Step 2: Convert to fraction form
    39,458.03/54,453.39 = 21,554.70/x
  3. Step 3: Cross multiply
    39,458.03x = 54,453.39 × 21,554.70
  4. Step 4: Simplify right side
    39,458.03x = 1,173,726,485.43
  5. Step 5: Solve for x
    x = 1,173,726,485.43/39,458.03
  6. Step 6: Final answer
    x = 29,746.20

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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.