Home / 20,445.26-28,211.92-11,832.93

Finding the Fourth Proportional to 20,445.26, 28,211.92 and 11,832.93

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Solution

The fourth proportional to 20,445.26, 28,211.92 and 11,832.93 is: 16,327.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,445.26 : 28,211.92 = 11,832.93 : x
  2. Step 2: Convert to fraction form
    20,445.26/28,211.92 = 11,832.93/x
  3. Step 3: Cross multiply
    20,445.26x = 28,211.92 × 11,832.93
  4. Step 4: Simplify right side
    20,445.26x = 333,829,644.94
  5. Step 5: Solve for x
    x = 333,829,644.94/20,445.26
  6. Step 6: Final answer
    x = 16,327.98

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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.