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Finding the Fourth Proportional to 27,090, 37,383.16 and 15,154.44

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Solution

The fourth proportional to 27,090, 37,383.16 and 15,154.44 is: 20,912.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,090 : 37,383.16 = 15,154.44 : x
  2. Step 2: Convert to fraction form
    27,090/37,383.16 = 15,154.44/x
  3. Step 3: Cross multiply
    27,090x = 37,383.16 × 15,154.44
  4. Step 4: Simplify right side
    27,090x = 566,520,855.23
  5. Step 5: Solve for x
    x = 566,520,855.23/27,090
  6. Step 6: Final answer
    x = 20,912.55

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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.