Home / 28,193.93-38,907.19-15,447.01

Finding the Fourth Proportional to 28,193.93, 38,907.19 and 15,447.01

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Solution

The fourth proportional to 28,193.93, 38,907.19 and 15,447.01 is: 21,316.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,193.93 : 38,907.19 = 15,447.01 : x
  2. Step 2: Convert to fraction form
    28,193.93/38,907.19 = 15,447.01/x
  3. Step 3: Cross multiply
    28,193.93x = 38,907.19 × 15,447.01
  4. Step 4: Simplify right side
    28,193.93x = 600,999,481.23
  5. Step 5: Solve for x
    x = 600,999,481.23/28,193.93
  6. Step 6: Final answer
    x = 21,316.63

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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.