Home / 20,665.23-30,973.24-14,391.27

Finding the Fourth Proportional to 20,665.23, 30,973.24 and 14,391.27

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Solution

The fourth proportional to 20,665.23, 30,973.24 and 14,391.27 is: 21,569.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,665.23 : 30,973.24 = 14,391.27 : x
  2. Step 2: Convert to fraction form
    20,665.23/30,973.24 = 14,391.27/x
  3. Step 3: Cross multiply
    20,665.23x = 30,973.24 × 14,391.27
  4. Step 4: Simplify right side
    20,665.23x = 445,744,259.61
  5. Step 5: Solve for x
    x = 445,744,259.61/20,665.23
  6. Step 6: Final answer
    x = 21,569.77

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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.