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Finding the Fourth Proportional to 18,549.54, 27,842.54 and 13,605.10

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Solution

The fourth proportional to 18,549.54, 27,842.54 and 13,605.10 is: 20,421.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,549.54 : 27,842.54 = 13,605.10 : x
  2. Step 2: Convert to fraction form
    18,549.54/27,842.54 = 13,605.10/x
  3. Step 3: Cross multiply
    18,549.54x = 27,842.54 × 13,605.10
  4. Step 4: Simplify right side
    18,549.54x = 378,800,403.32
  5. Step 5: Solve for x
    x = 378,800,403.32/18,549.54
  6. Step 6: Final answer
    x = 20,421.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.