Home / 20,992.64-28,968.17-13,033.35

Finding the Fourth Proportional to 20,992.64, 28,968.17 and 13,033.35

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Solution

The fourth proportional to 20,992.64, 28,968.17 and 13,033.35 is: 17,984.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,992.64 : 28,968.17 = 13,033.35 : x
  2. Step 2: Convert to fraction form
    20,992.64/28,968.17 = 13,033.35/x
  3. Step 3: Cross multiply
    20,992.64x = 28,968.17 × 13,033.35
  4. Step 4: Simplify right side
    20,992.64x = 377,552,233.30
  5. Step 5: Solve for x
    x = 377,552,233.30/20,992.64
  6. Step 6: Final answer
    x = 17,984.99

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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.