Home / 20,741.32-28,623.30-11,310.28

Finding the Fourth Proportional to 20,741.32, 28,623.30 and 11,310.28

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Solution

The fourth proportional to 20,741.32, 28,623.30 and 11,310.28 is: 15,608.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,741.32 : 28,623.30 = 11,310.28 : x
  2. Step 2: Convert to fraction form
    20,741.32/28,623.30 = 11,310.28/x
  3. Step 3: Cross multiply
    20,741.32x = 28,623.30 × 11,310.28
  4. Step 4: Simplify right side
    20,741.32x = 323,737,537.52
  5. Step 5: Solve for x
    x = 323,737,537.52/20,741.32
  6. Step 6: Final answer
    x = 15,608.34

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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.