Home / 27,684.30-38,204.16-15,747.60

Finding the Fourth Proportional to 27,684.30, 38,204.16 and 15,747.60

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Solution

The fourth proportional to 27,684.30, 38,204.16 and 15,747.60 is: 21,731.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,684.30 : 38,204.16 = 15,747.60 : x
  2. Step 2: Convert to fraction form
    27,684.30/38,204.16 = 15,747.60/x
  3. Step 3: Cross multiply
    27,684.30x = 38,204.16 × 15,747.60
  4. Step 4: Simplify right side
    27,684.30x = 601,623,830.02
  5. Step 5: Solve for x
    x = 601,623,830.02/27,684.30
  6. Step 6: Final answer
    x = 21,731.59

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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.