Home / 20,725.70-31,089.66-5,936.78

Finding the Fourth Proportional to 20,725.70, 31,089.66 and 5,936.78

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Solution

The fourth proportional to 20,725.70, 31,089.66 and 5,936.78 is: 8,905.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,725.70 : 31,089.66 = 5,936.78 : x
  2. Step 2: Convert to fraction form
    20,725.70/31,089.66 = 5,936.78/x
  3. Step 3: Cross multiply
    20,725.70x = 31,089.66 × 5,936.78
  4. Step 4: Simplify right side
    20,725.70x = 184,572,471.69
  5. Step 5: Solve for x
    x = 184,572,471.69/20,725.70
  6. Step 6: Final answer
    x = 8,905.49

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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.