Home / 28,343.46-42,476.85-10,803.72

Finding the Fourth Proportional to 28,343.46, 42,476.85 and 10,803.72

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Solution

The fourth proportional to 28,343.46, 42,476.85 and 10,803.72 is: 16,190.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,343.46 : 42,476.85 = 10,803.72 : x
  2. Step 2: Convert to fraction form
    28,343.46/42,476.85 = 10,803.72/x
  3. Step 3: Cross multiply
    28,343.46x = 42,476.85 × 10,803.72
  4. Step 4: Simplify right side
    28,343.46x = 458,907,993.88
  5. Step 5: Solve for x
    x = 458,907,993.88/28,343.46
  6. Step 6: Final answer
    x = 16,190.97

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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.