Home / 20,575.41-28,393.57-11,622.61

Finding the Fourth Proportional to 20,575.41, 28,393.57 and 11,622.61

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Solution

The fourth proportional to 20,575.41, 28,393.57 and 11,622.61 is: 16,038.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,575.41 : 28,393.57 = 11,622.61 : x
  2. Step 2: Convert to fraction form
    20,575.41/28,393.57 = 11,622.61/x
  3. Step 3: Cross multiply
    20,575.41x = 28,393.57 × 11,622.61
  4. Step 4: Simplify right side
    20,575.41x = 330,007,390.62
  5. Step 5: Solve for x
    x = 330,007,390.62/20,575.41
  6. Step 6: Final answer
    x = 16,038.92

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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.