Home / 27,665.68-38,178.96-15,090.64

Finding the Fourth Proportional to 27,665.68, 38,178.96 and 15,090.64

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Solution

The fourth proportional to 27,665.68, 38,178.96 and 15,090.64 is: 20,825.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,665.68 : 38,178.96 = 15,090.64 : x
  2. Step 2: Convert to fraction form
    27,665.68/38,178.96 = 15,090.64/x
  3. Step 3: Cross multiply
    27,665.68x = 38,178.96 × 15,090.64
  4. Step 4: Simplify right side
    27,665.68x = 576,144,940.93
  5. Step 5: Solve for x
    x = 576,144,940.93/27,665.68
  6. Step 6: Final answer
    x = 20,825.26

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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.