Home / 21,549.88-29,735.40-13,050.55

Finding the Fourth Proportional to 21,549.88, 29,735.40 and 13,050.55

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Solution

The fourth proportional to 21,549.88, 29,735.40 and 13,050.55 is: 18,007.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,549.88 : 29,735.40 = 13,050.55 : x
  2. Step 2: Convert to fraction form
    21,549.88/29,735.40 = 13,050.55/x
  3. Step 3: Cross multiply
    21,549.88x = 29,735.40 × 13,050.55
  4. Step 4: Simplify right side
    21,549.88x = 388,063,324.47
  5. Step 5: Solve for x
    x = 388,063,324.47/21,549.88
  6. Step 6: Final answer
    x = 18,007.68

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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.