Home / 28,612.54-42,923.46-8,895.67

Finding the Fourth Proportional to 28,612.54, 42,923.46 and 8,895.67

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Solution

The fourth proportional to 28,612.54, 42,923.46 and 8,895.67 is: 13,344.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,612.54 : 42,923.46 = 8,895.67 : x
  2. Step 2: Convert to fraction form
    28,612.54/42,923.46 = 8,895.67/x
  3. Step 3: Cross multiply
    28,612.54x = 42,923.46 × 8,895.67
  4. Step 4: Simplify right side
    28,612.54x = 381,832,935.42
  5. Step 5: Solve for x
    x = 381,832,935.42/28,612.54
  6. Step 6: Final answer
    x = 13,344.95

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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.