Home / 21,645.45-32,422.71-13,743.92

Finding the Fourth Proportional to 21,645.45, 32,422.71 and 13,743.92

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Solution

The fourth proportional to 21,645.45, 32,422.71 and 13,743.92 is: 20,587.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,645.45 : 32,422.71 = 13,743.92 : x
  2. Step 2: Convert to fraction form
    21,645.45/32,422.71 = 13,743.92/x
  3. Step 3: Cross multiply
    21,645.45x = 32,422.71 × 13,743.92
  4. Step 4: Simplify right side
    21,645.45x = 445,615,265.02
  5. Step 5: Solve for x
    x = 445,615,265.02/21,645.45
  6. Step 6: Final answer
    x = 20,587.02

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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.