Home / 19,936.70-29,905.05-13,715.90

Finding the Fourth Proportional to 19,936.70, 29,905.05 and 13,715.90

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Solution

The fourth proportional to 19,936.70, 29,905.05 and 13,715.90 is: 20,573.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,936.70 : 29,905.05 = 13,715.90 : x
  2. Step 2: Convert to fraction form
    19,936.70/29,905.05 = 13,715.90/x
  3. Step 3: Cross multiply
    19,936.70x = 29,905.05 × 13,715.90
  4. Step 4: Simplify right side
    19,936.70x = 410,174,675.30
  5. Step 5: Solve for x
    x = 410,174,675.30/19,936.70
  6. Step 6: Final answer
    x = 20,573.85

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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.