Home / 35,636.12-49,177.36-19,719.60

Finding the Fourth Proportional to 35,636.12, 49,177.36 and 19,719.60

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Solution

The fourth proportional to 35,636.12, 49,177.36 and 19,719.60 is: 27,212.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,636.12 : 49,177.36 = 19,719.60 : x
  2. Step 2: Convert to fraction form
    35,636.12/49,177.36 = 19,719.60/x
  3. Step 3: Cross multiply
    35,636.12x = 49,177.36 × 19,719.60
  4. Step 4: Simplify right side
    35,636.12x = 969,757,868.26
  5. Step 5: Solve for x
    x = 969,757,868.26/35,636.12
  6. Step 6: Final answer
    x = 27,212.78

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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.