Home / 27,667.02-38,180.49-15,731.09

Finding the Fourth Proportional to 27,667.02, 38,180.49 and 15,731.09

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Solution

The fourth proportional to 27,667.02, 38,180.49 and 15,731.09 is: 21,708.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,667.02 : 38,180.49 = 15,731.09 : x
  2. Step 2: Convert to fraction form
    27,667.02/38,180.49 = 15,731.09/x
  3. Step 3: Cross multiply
    27,667.02x = 38,180.49 × 15,731.09
  4. Step 4: Simplify right side
    27,667.02x = 600,620,724.43
  5. Step 5: Solve for x
    x = 600,620,724.43/27,667.02
  6. Step 6: Final answer
    x = 21,708.91

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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.