Home / 27,918.30-38,527.08-15,171.42

Finding the Fourth Proportional to 27,918.30, 38,527.08 and 15,171.42

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Solution

The fourth proportional to 27,918.30, 38,527.08 and 15,171.42 is: 20,936.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,918.30 : 38,527.08 = 15,171.42 : x
  2. Step 2: Convert to fraction form
    27,918.30/38,527.08 = 15,171.42/x
  3. Step 3: Cross multiply
    27,918.30x = 38,527.08 × 15,171.42
  4. Step 4: Simplify right side
    27,918.30x = 584,510,512.05
  5. Step 5: Solve for x
    x = 584,510,512.05/27,918.30
  6. Step 6: Final answer
    x = 20,936.47

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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.