Home / 47,106.60-70,638.30-20,797.80

Finding the Fourth Proportional to 47,106.60, 70,638.30 and 20,797.80

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Solution

The fourth proportional to 47,106.60, 70,638.30 and 20,797.80 is: 31,187.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,106.60 : 70,638.30 = 20,797.80 : x
  2. Step 2: Convert to fraction form
    47,106.60/70,638.30 = 20,797.80/x
  3. Step 3: Cross multiply
    47,106.60x = 70,638.30 × 20,797.80
  4. Step 4: Simplify right side
    47,106.60x = 1,469,121,235.74
  5. Step 5: Solve for x
    x = 1,469,121,235.74/47,106.60
  6. Step 6: Final answer
    x = 31,187.16

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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.