Home / 27,604.59-38,090.25-15,665.64

Finding the Fourth Proportional to 27,604.59, 38,090.25 and 15,665.64

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Solution

The fourth proportional to 27,604.59, 38,090.25 and 15,665.64 is: 21,616.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,604.59 : 38,090.25 = 15,665.64 : x
  2. Step 2: Convert to fraction form
    27,604.59/38,090.25 = 15,665.64/x
  3. Step 3: Cross multiply
    27,604.59x = 38,090.25 × 15,665.64
  4. Step 4: Simplify right side
    27,604.59x = 596,708,144.01
  5. Step 5: Solve for x
    x = 596,708,144.01/27,604.59
  6. Step 6: Final answer
    x = 21,616.27

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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.