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Finding the Fourth Proportional to 27,893.63, 38,493.08 and 15,146.71

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Solution

The fourth proportional to 27,893.63, 38,493.08 and 15,146.71 is: 20,902.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,893.63 : 38,493.08 = 15,146.71 : x
  2. Step 2: Convert to fraction form
    27,893.63/38,493.08 = 15,146.71/x
  3. Step 3: Cross multiply
    27,893.63x = 38,493.08 × 15,146.71
  4. Step 4: Simplify right side
    27,893.63x = 583,043,347.80
  5. Step 5: Solve for x
    x = 583,043,347.80/27,893.63
  6. Step 6: Final answer
    x = 20,902.38

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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.