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Finding the Fourth Proportional to 34,797.78, 48,017.34 and 20,647.89

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Solution

The fourth proportional to 34,797.78, 48,017.34 and 20,647.89 is: 28,491.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,797.78 : 48,017.34 = 20,647.89 : x
  2. Step 2: Convert to fraction form
    34,797.78/48,017.34 = 20,647.89/x
  3. Step 3: Cross multiply
    34,797.78x = 48,017.34 × 20,647.89
  4. Step 4: Simplify right side
    34,797.78x = 991,456,754.41
  5. Step 5: Solve for x
    x = 991,456,754.41/34,797.78
  6. Step 6: Final answer
    x = 28,491.95

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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.