Home / 20,565.88-28,381.82-11,613.46

Finding the Fourth Proportional to 20,565.88, 28,381.82 and 11,613.46

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Solution

The fourth proportional to 20,565.88, 28,381.82 and 11,613.46 is: 16,027.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,565.88 : 28,381.82 = 11,613.46 : x
  2. Step 2: Convert to fraction form
    20,565.88/28,381.82 = 11,613.46/x
  3. Step 3: Cross multiply
    20,565.88x = 28,381.82 × 11,613.46
  4. Step 4: Simplify right side
    20,565.88x = 329,611,131.30
  5. Step 5: Solve for x
    x = 329,611,131.30/20,565.88
  6. Step 6: Final answer
    x = 16,027.09

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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.