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Finding the Fourth Proportional to 18,585, 27,807.48 and 13,049.28

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Solution

The fourth proportional to 18,585, 27,807.48 and 13,049.28 is: 19,524.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,585 : 27,807.48 = 13,049.28 : x
  2. Step 2: Convert to fraction form
    18,585/27,807.48 = 13,049.28/x
  3. Step 3: Cross multiply
    18,585x = 27,807.48 × 13,049.28
  4. Step 4: Simplify right side
    18,585x = 362,867,592.61
  5. Step 5: Solve for x
    x = 362,867,592.61/18,585
  6. Step 6: Final answer
    x = 19,524.76

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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.