Home / 28,501.92-42,709.68-18,082.08

Finding the Fourth Proportional to 28,501.92, 42,709.68 and 18,082.08

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Solution

The fourth proportional to 28,501.92, 42,709.68 and 18,082.08 is: 27,095.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,501.92 : 42,709.68 = 18,082.08 : x
  2. Step 2: Convert to fraction form
    28,501.92/42,709.68 = 18,082.08/x
  3. Step 3: Cross multiply
    28,501.92x = 42,709.68 × 18,082.08
  4. Step 4: Simplify right side
    28,501.92x = 772,279,850.53
  5. Step 5: Solve for x
    x = 772,279,850.53/28,501.92
  6. Step 6: Final answer
    x = 27,095.71

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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.