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Finding the Fourth Proportional to 34,635.70, 47,797.11 and 18,720.11

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Solution

The fourth proportional to 34,635.70, 47,797.11 and 18,720.11 is: 25,833.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,635.70 : 47,797.11 = 18,720.11 : x
  2. Step 2: Convert to fraction form
    34,635.70/47,797.11 = 18,720.11/x
  3. Step 3: Cross multiply
    34,635.70x = 47,797.11 × 18,720.11
  4. Step 4: Simplify right side
    34,635.70x = 894,767,329.03
  5. Step 5: Solve for x
    x = 894,767,329.03/34,635.70
  6. Step 6: Final answer
    x = 25,833.67

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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.