Home / 21,432.33-32,157.68-11,051.37

Finding the Fourth Proportional to 21,432.33, 32,157.68 and 11,051.37

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Solution

The fourth proportional to 21,432.33, 32,157.68 and 11,051.37 is: 16,581.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,432.33 : 32,157.68 = 11,051.37 : x
  2. Step 2: Convert to fraction form
    21,432.33/32,157.68 = 11,051.37/x
  3. Step 3: Cross multiply
    21,432.33x = 32,157.68 × 11,051.37
  4. Step 4: Simplify right side
    21,432.33x = 355,386,364.76
  5. Step 5: Solve for x
    x = 355,386,364.76/21,432.33
  6. Step 6: Final answer
    x = 16,581.79

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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.