Home / 19,761.15-29,608.81-13,905.46

Finding the Fourth Proportional to 19,761.15, 29,608.81 and 13,905.46

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Solution

The fourth proportional to 19,761.15, 29,608.81 and 13,905.46 is: 20,835.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,761.15 : 29,608.81 = 13,905.46 : x
  2. Step 2: Convert to fraction form
    19,761.15/29,608.81 = 13,905.46/x
  3. Step 3: Cross multiply
    19,761.15x = 29,608.81 × 13,905.46
  4. Step 4: Simplify right side
    19,761.15x = 411,724,123.10
  5. Step 5: Solve for x
    x = 411,724,123.10/19,761.15
  6. Step 6: Final answer
    x = 20,835.03

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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.