Home / 28,875.08-43,305.12-12,226.55

Finding the Fourth Proportional to 28,875.08, 43,305.12 and 12,226.55

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Solution

The fourth proportional to 28,875.08, 43,305.12 and 12,226.55 is: 18,336.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,875.08 : 43,305.12 = 12,226.55 : x
  2. Step 2: Convert to fraction form
    28,875.08/43,305.12 = 12,226.55/x
  3. Step 3: Cross multiply
    28,875.08x = 43,305.12 × 12,226.55
  4. Step 4: Simplify right side
    28,875.08x = 529,471,998.41
  5. Step 5: Solve for x
    x = 529,471,998.41/28,875.08
  6. Step 6: Final answer
    x = 18,336.64

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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.