Home / 20,009.96-27,613.79-10,935.42

Finding the Fourth Proportional to 20,009.96, 27,613.79 and 10,935.42

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Solution

The fourth proportional to 20,009.96, 27,613.79 and 10,935.42 is: 15,090.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,009.96 : 27,613.79 = 10,935.42 : x
  2. Step 2: Convert to fraction form
    20,009.96/27,613.79 = 10,935.42/x
  3. Step 3: Cross multiply
    20,009.96x = 27,613.79 × 10,935.42
  4. Step 4: Simplify right side
    20,009.96x = 301,968,336.76
  5. Step 5: Solve for x
    x = 301,968,336.76/20,009.96
  6. Step 6: Final answer
    x = 15,090.91

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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.