Home / 21,197.52-29,265.84-13,647.60

Finding the Fourth Proportional to 21,197.52, 29,265.84 and 13,647.60

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Solution

The fourth proportional to 21,197.52, 29,265.84 and 13,647.60 is: 18,842.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,197.52 : 29,265.84 = 13,647.60 : x
  2. Step 2: Convert to fraction form
    21,197.52/29,265.84 = 13,647.60/x
  3. Step 3: Cross multiply
    21,197.52x = 29,265.84 × 13,647.60
  4. Step 4: Simplify right side
    21,197.52x = 399,408,477.98
  5. Step 5: Solve for x
    x = 399,408,477.98/21,197.52
  6. Step 6: Final answer
    x = 18,842.23

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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.