Home / 34,635.80-47,797.34-18,720.21

Finding the Fourth Proportional to 34,635.80, 47,797.34 and 18,720.21

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Solution

The fourth proportional to 34,635.80, 47,797.34 and 18,720.21 is: 25,833.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,635.80 : 47,797.34 = 18,720.21 : x
  2. Step 2: Convert to fraction form
    34,635.80/47,797.34 = 18,720.21/x
  3. Step 3: Cross multiply
    34,635.80x = 47,797.34 × 18,720.21
  4. Step 4: Simplify right side
    34,635.80x = 894,776,327.88
  5. Step 5: Solve for x
    x = 894,776,327.88/34,635.80
  6. Step 6: Final answer
    x = 25,833.86

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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.