Home / 28,299.46-42,449.40-8,579.56

Finding the Fourth Proportional to 28,299.46, 42,449.40 and 8,579.56

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Solution

The fourth proportional to 28,299.46, 42,449.40 and 8,579.56 is: 12,869.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,299.46 : 42,449.40 = 8,579.56 : x
  2. Step 2: Convert to fraction form
    28,299.46/42,449.40 = 8,579.56/x
  3. Step 3: Cross multiply
    28,299.46x = 42,449.40 × 8,579.56
  4. Step 4: Simplify right side
    28,299.46x = 364,197,174.26
  5. Step 5: Solve for x
    x = 364,197,174.26/28,299.46
  6. Step 6: Final answer
    x = 12,869.40

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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.