Home / 28,458.95-39,187.40-25,789.59

Finding the Fourth Proportional to 28,458.95, 39,187.40 and 25,789.59

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Solution

The fourth proportional to 28,458.95, 39,187.40 and 25,789.59 is: 35,511.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,458.95 : 39,187.40 = 25,789.59 : x
  2. Step 2: Convert to fraction form
    28,458.95/39,187.40 = 25,789.59/x
  3. Step 3: Cross multiply
    28,458.95x = 39,187.40 × 25,789.59
  4. Step 4: Simplify right side
    28,458.95x = 1,010,626,850.22
  5. Step 5: Solve for x
    x = 1,010,626,850.22/28,458.95
  6. Step 6: Final answer
    x = 35,511.75

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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.