Home / 28,919.10-39,908.34-16,343.88

Finding the Fourth Proportional to 28,919.10, 39,908.34 and 16,343.88

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Solution

The fourth proportional to 28,919.10, 39,908.34 and 16,343.88 is: 22,554.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,919.10 : 39,908.34 = 16,343.88 : x
  2. Step 2: Convert to fraction form
    28,919.10/39,908.34 = 16,343.88/x
  3. Step 3: Cross multiply
    28,919.10x = 39,908.34 × 16,343.88
  4. Step 4: Simplify right side
    28,919.10x = 652,257,119.96
  5. Step 5: Solve for x
    x = 652,257,119.96/28,919.10
  6. Step 6: Final answer
    x = 22,554.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.