Home / 21,743.70-32,557.14-13,803.21

Finding the Fourth Proportional to 21,743.70, 32,557.14 and 13,803.21

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Solution

The fourth proportional to 21,743.70, 32,557.14 and 13,803.21 is: 20,667.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,743.70 : 32,557.14 = 13,803.21 : x
  2. Step 2: Convert to fraction form
    21,743.70/32,557.14 = 13,803.21/x
  3. Step 3: Cross multiply
    21,743.70x = 32,557.14 × 13,803.21
  4. Step 4: Simplify right side
    21,743.70x = 449,393,040.42
  5. Step 5: Solve for x
    x = 449,393,040.42/21,743.70
  6. Step 6: Final answer
    x = 20,667.74

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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.