Home / 28,226.76-42,336.02-8,230.88

Finding the Fourth Proportional to 28,226.76, 42,336.02 and 8,230.88

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Solution

The fourth proportional to 28,226.76, 42,336.02 and 8,230.88 is: 12,345.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,226.76 : 42,336.02 = 8,230.88 : x
  2. Step 2: Convert to fraction form
    28,226.76/42,336.02 = 8,230.88/x
  3. Step 3: Cross multiply
    28,226.76x = 42,336.02 × 8,230.88
  4. Step 4: Simplify right side
    28,226.76x = 348,462,694.83
  5. Step 5: Solve for x
    x = 348,462,694.83/28,226.76
  6. Step 6: Final answer
    x = 12,345.12

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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.