Home / 28,357.47-39,131.46-15,608.22

Finding the Fourth Proportional to 28,357.47, 39,131.46 and 15,608.22

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Solution

The fourth proportional to 28,357.47, 39,131.46 and 15,608.22 is: 21,538.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,357.47 : 39,131.46 = 15,608.22 : x
  2. Step 2: Convert to fraction form
    28,357.47/39,131.46 = 15,608.22/x
  3. Step 3: Cross multiply
    28,357.47x = 39,131.46 × 15,608.22
  4. Step 4: Simplify right side
    28,357.47x = 610,772,436.60
  5. Step 5: Solve for x
    x = 610,772,436.60/28,357.47
  6. Step 6: Final answer
    x = 21,538.33

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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.