Home / 34,161.60-47,135.84-20,739.92

Finding the Fourth Proportional to 34,161.60, 47,135.84 and 20,739.92

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Solution

The fourth proportional to 34,161.60, 47,135.84 and 20,739.92 is: 28,616.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,161.60 : 47,135.84 = 20,739.92 : x
  2. Step 2: Convert to fraction form
    34,161.60/47,135.84 = 20,739.92/x
  3. Step 3: Cross multiply
    34,161.60x = 47,135.84 × 20,739.92
  4. Step 4: Simplify right side
    34,161.60x = 977,593,550.73
  5. Step 5: Solve for x
    x = 977,593,550.73/34,161.60
  6. Step 6: Final answer
    x = 28,616.74

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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.