Home / 28,573.68-42,873.12-9,856.56

Finding the Fourth Proportional to 28,573.68, 42,873.12 and 9,856.56

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Solution

The fourth proportional to 28,573.68, 42,873.12 and 9,856.56 is: 14,789.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,573.68 : 42,873.12 = 9,856.56 : x
  2. Step 2: Convert to fraction form
    28,573.68/42,873.12 = 9,856.56/x
  3. Step 3: Cross multiply
    28,573.68x = 42,873.12 × 9,856.56
  4. Step 4: Simplify right side
    28,573.68x = 422,581,479.67
  5. Step 5: Solve for x
    x = 422,581,479.67/28,573.68
  6. Step 6: Final answer
    x = 14,789.19

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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.