Home / 20,696.37-28,534.31-15,039.33

Finding the Fourth Proportional to 20,696.37, 28,534.31 and 15,039.33

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Solution

The fourth proportional to 20,696.37, 28,534.31 and 15,039.33 is: 20,734.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,696.37 : 28,534.31 = 15,039.33 : x
  2. Step 2: Convert to fraction form
    20,696.37/28,534.31 = 15,039.33/x
  3. Step 3: Cross multiply
    20,696.37x = 28,534.31 × 15,039.33
  4. Step 4: Simplify right side
    20,696.37x = 429,136,829.22
  5. Step 5: Solve for x
    x = 429,136,829.22/20,696.37
  6. Step 6: Final answer
    x = 20,734.88

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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.