Home / 21,644.37-29,864.49-14,089.89

Finding the Fourth Proportional to 21,644.37, 29,864.49 and 14,089.89

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Solution

The fourth proportional to 21,644.37, 29,864.49 and 14,089.89 is: 19,440.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,644.37 : 29,864.49 = 14,089.89 : x
  2. Step 2: Convert to fraction form
    21,644.37/29,864.49 = 14,089.89/x
  3. Step 3: Cross multiply
    21,644.37x = 29,864.49 × 14,089.89
  4. Step 4: Simplify right side
    21,644.37x = 420,787,308.56
  5. Step 5: Solve for x
    x = 420,787,308.56/21,644.37
  6. Step 6: Final answer
    x = 19,440.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.