Home / 19,723.39-29,567.81-7,420.03

Finding the Fourth Proportional to 19,723.39, 29,567.81 and 7,420.03

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Solution

The fourth proportional to 19,723.39, 29,567.81 and 7,420.03 is: 11,123.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,723.39 : 29,567.81 = 7,420.03 : x
  2. Step 2: Convert to fraction form
    19,723.39/29,567.81 = 7,420.03/x
  3. Step 3: Cross multiply
    19,723.39x = 29,567.81 × 7,420.03
  4. Step 4: Simplify right side
    19,723.39x = 219,394,000.13
  5. Step 5: Solve for x
    x = 219,394,000.13/19,723.39
  6. Step 6: Final answer
    x = 11,123.54

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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.