Home / 28,366.62-42,554.55-8,378.14

Finding the Fourth Proportional to 28,366.62, 42,554.55 and 8,378.14

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Solution

The fourth proportional to 28,366.62, 42,554.55 and 8,378.14 is: 12,568.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,366.62 : 42,554.55 = 8,378.14 : x
  2. Step 2: Convert to fraction form
    28,366.62/42,554.55 = 8,378.14/x
  3. Step 3: Cross multiply
    28,366.62x = 42,554.55 × 8,378.14
  4. Step 4: Simplify right side
    28,366.62x = 356,527,871.15
  5. Step 5: Solve for x
    x = 356,527,871.15/28,366.62
  6. Step 6: Final answer
    x = 12,568.57

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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.