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Finding the Fourth Proportional to 30,635.84, 45,953.76 and 8,747.84

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Solution

The fourth proportional to 30,635.84, 45,953.76 and 8,747.84 is: 13,121.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,635.84 : 45,953.76 = 8,747.84 : x
  2. Step 2: Convert to fraction form
    30,635.84/45,953.76 = 8,747.84/x
  3. Step 3: Cross multiply
    30,635.84x = 45,953.76 × 8,747.84
  4. Step 4: Simplify right side
    30,635.84x = 401,996,139.88
  5. Step 5: Solve for x
    x = 401,996,139.88/30,635.84
  6. Step 6: Final answer
    x = 13,121.76

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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.