Home / 27,857.64-38,443.48-15,282.36

Finding the Fourth Proportional to 27,857.64, 38,443.48 and 15,282.36

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Solution

The fourth proportional to 27,857.64, 38,443.48 and 15,282.36 is: 21,089.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,857.64 : 38,443.48 = 15,282.36 : x
  2. Step 2: Convert to fraction form
    27,857.64/38,443.48 = 15,282.36/x
  3. Step 3: Cross multiply
    27,857.64x = 38,443.48 × 15,282.36
  4. Step 4: Simplify right side
    27,857.64x = 587,507,101.01
  5. Step 5: Solve for x
    x = 587,507,101.01/27,857.64
  6. Step 6: Final answer
    x = 21,089.62

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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.