Home / 20,689.96-31,034.70-5,896.84

Finding the Fourth Proportional to 20,689.96, 31,034.70 and 5,896.84

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Solution

The fourth proportional to 20,689.96, 31,034.70 and 5,896.84 is: 8,845.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,689.96 : 31,034.70 = 5,896.84 : x
  2. Step 2: Convert to fraction form
    20,689.96/31,034.70 = 5,896.84/x
  3. Step 3: Cross multiply
    20,689.96x = 31,034.70 × 5,896.84
  4. Step 4: Simplify right side
    20,689.96x = 183,006,660.35
  5. Step 5: Solve for x
    x = 183,006,660.35/20,689.96
  6. Step 6: Final answer
    x = 8,845.19

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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.