Home / 28,048.68-42,072.21-8,327.61

Finding the Fourth Proportional to 28,048.68, 42,072.21 and 8,327.61

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Solution

The fourth proportional to 28,048.68, 42,072.21 and 8,327.61 is: 12,491.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,048.68 : 42,072.21 = 8,327.61 : x
  2. Step 2: Convert to fraction form
    28,048.68/42,072.21 = 8,327.61/x
  3. Step 3: Cross multiply
    28,048.68x = 42,072.21 × 8,327.61
  4. Step 4: Simplify right side
    28,048.68x = 350,360,956.72
  5. Step 5: Solve for x
    x = 350,360,956.72/28,048.68
  6. Step 6: Final answer
    x = 12,491.17

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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.