Home / 21,734.03-29,992.20-12,302.39

Finding the Fourth Proportional to 21,734.03, 29,992.20 and 12,302.39

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Solution

The fourth proportional to 21,734.03, 29,992.20 and 12,302.39 is: 16,976.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,734.03 : 29,992.20 = 12,302.39 : x
  2. Step 2: Convert to fraction form
    21,734.03/29,992.20 = 12,302.39/x
  3. Step 3: Cross multiply
    21,734.03x = 29,992.20 × 12,302.39
  4. Step 4: Simplify right side
    21,734.03x = 368,975,741.36
  5. Step 5: Solve for x
    x = 368,975,741.36/21,734.03
  6. Step 6: Final answer
    x = 16,976.87

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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.