Home / 18,895.32-28,416.90-15,942.87

Finding the Fourth Proportional to 18,895.32, 28,416.90 and 15,942.87

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Solution

The fourth proportional to 18,895.32, 28,416.90 and 15,942.87 is: 23,976.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,895.32 : 28,416.90 = 15,942.87 : x
  2. Step 2: Convert to fraction form
    18,895.32/28,416.90 = 15,942.87/x
  3. Step 3: Cross multiply
    18,895.32x = 28,416.90 × 15,942.87
  4. Step 4: Simplify right side
    18,895.32x = 453,046,942.50
  5. Step 5: Solve for x
    x = 453,046,942.50/18,895.32
  6. Step 6: Final answer
    x = 23,976.67

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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.