Home / 28,245.22-42,371.46-8,525.76

Finding the Fourth Proportional to 28,245.22, 42,371.46 and 8,525.76

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Solution

The fourth proportional to 28,245.22, 42,371.46 and 8,525.76 is: 12,789.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,245.22 : 42,371.46 = 8,525.76 : x
  2. Step 2: Convert to fraction form
    28,245.22/42,371.46 = 8,525.76/x
  3. Step 3: Cross multiply
    28,245.22x = 42,371.46 × 8,525.76
  4. Step 4: Simplify right side
    28,245.22x = 361,248,898.81
  5. Step 5: Solve for x
    x = 361,248,898.81/28,245.22
  6. Step 6: Final answer
    x = 12,789.74

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1.5x scale

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.