Home / 21,744.19-32,622.79-12,503.71

Finding the Fourth Proportional to 21,744.19, 32,622.79 and 12,503.71

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Solution

The fourth proportional to 21,744.19, 32,622.79 and 12,503.71 is: 18,759.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,744.19 : 32,622.79 = 12,503.71 : x
  2. Step 2: Convert to fraction form
    21,744.19/32,622.79 = 12,503.71/x
  3. Step 3: Cross multiply
    21,744.19x = 32,622.79 × 12,503.71
  4. Step 4: Simplify right side
    21,744.19x = 407,905,905.55
  5. Step 5: Solve for x
    x = 407,905,905.55/21,744.19
  6. Step 6: Final answer
    x = 18,759.31

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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.