Home / 30,359.60-45,234.15-28,661.94

Finding the Fourth Proportional to 30,359.60, 45,234.15 and 28,661.94

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Solution

The fourth proportional to 30,359.60, 45,234.15 and 28,661.94 is: 42,704.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,359.60 : 45,234.15 = 28,661.94 : x
  2. Step 2: Convert to fraction form
    30,359.60/45,234.15 = 28,661.94/x
  3. Step 3: Cross multiply
    30,359.60x = 45,234.15 × 28,661.94
  4. Step 4: Simplify right side
    30,359.60x = 1,296,498,493.25
  5. Step 5: Solve for x
    x = 1,296,498,493.25/30,359.60
  6. Step 6: Final answer
    x = 42,704.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.