Home / 28,003.57-42,013.56-8,282.65

Finding the Fourth Proportional to 28,003.57, 42,013.56 and 8,282.65

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Solution

The fourth proportional to 28,003.57, 42,013.56 and 8,282.65 is: 12,426.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,003.57 : 42,013.56 = 8,282.65 : x
  2. Step 2: Convert to fraction form
    28,003.57/42,013.56 = 8,282.65/x
  3. Step 3: Cross multiply
    28,003.57x = 42,013.56 × 8,282.65
  4. Step 4: Simplify right side
    28,003.57x = 347,983,612.73
  5. Step 5: Solve for x
    x = 347,983,612.73/28,003.57
  6. Step 6: Final answer
    x = 12,426.40

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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.