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Finding the Fourth Proportional to 18,245.77, 27,315.30 and 16,494.78

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Solution

The fourth proportional to 18,245.77, 27,315.30 and 16,494.78 is: 24,693.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,245.77 : 27,315.30 = 16,494.78 : x
  2. Step 2: Convert to fraction form
    18,245.77/27,315.30 = 16,494.78/x
  3. Step 3: Cross multiply
    18,245.77x = 27,315.30 × 16,494.78
  4. Step 4: Simplify right side
    18,245.77x = 450,559,864.13
  5. Step 5: Solve for x
    x = 450,559,864.13/18,245.77
  6. Step 6: Final answer
    x = 24,693.94

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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.