Home / 28,674.42-43,025.72-12,890.61

Finding the Fourth Proportional to 28,674.42, 43,025.72 and 12,890.61

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Solution

The fourth proportional to 28,674.42, 43,025.72 and 12,890.61 is: 19,342.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,674.42 : 43,025.72 = 12,890.61 : x
  2. Step 2: Convert to fraction form
    28,674.42/43,025.72 = 12,890.61/x
  3. Step 3: Cross multiply
    28,674.42x = 43,025.72 × 12,890.61
  4. Step 4: Simplify right side
    28,674.42x = 554,627,776.49
  5. Step 5: Solve for x
    x = 554,627,776.49/28,674.42
  6. Step 6: Final answer
    x = 19,342.25

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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.