Home / 28,381.82-42,582.45-10,856.66

Finding the Fourth Proportional to 28,381.82, 42,582.45 and 10,856.66

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Solution

The fourth proportional to 28,381.82, 42,582.45 and 10,856.66 is: 16,288.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,381.82 : 42,582.45 = 10,856.66 : x
  2. Step 2: Convert to fraction form
    28,381.82/42,582.45 = 10,856.66/x
  3. Step 3: Cross multiply
    28,381.82x = 42,582.45 × 10,856.66
  4. Step 4: Simplify right side
    28,381.82x = 462,303,181.62
  5. Step 5: Solve for x
    x = 462,303,181.62/28,381.82
  6. Step 6: Final answer
    x = 16,288.71

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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.