Home / 21,634.88-29,829.08-18,055

Finding the Fourth Proportional to 21,634.88, 29,829.08 and 18,055

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Solution

The fourth proportional to 21,634.88, 29,829.08 and 18,055 is: 24,893.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,634.88 : 29,829.08 = 18,055 : x
  2. Step 2: Convert to fraction form
    21,634.88/29,829.08 = 18,055/x
  3. Step 3: Cross multiply
    21,634.88x = 29,829.08 × 18,055
  4. Step 4: Simplify right side
    21,634.88x = 538,564,039.40
  5. Step 5: Solve for x
    x = 538,564,039.40/21,634.88
  6. Step 6: Final answer
    x = 24,893.32

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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.