Home / 20,575.59-28,394.04-12,076.20

Finding the Fourth Proportional to 20,575.59, 28,394.04 and 12,076.20

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Solution

The fourth proportional to 20,575.59, 28,394.04 and 12,076.20 is: 16,665.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,575.59 : 28,394.04 = 12,076.20 : x
  2. Step 2: Convert to fraction form
    20,575.59/28,394.04 = 12,076.20/x
  3. Step 3: Cross multiply
    20,575.59x = 28,394.04 × 12,076.20
  4. Step 4: Simplify right side
    20,575.59x = 342,892,105.85
  5. Step 5: Solve for x
    x = 342,892,105.85/20,575.59
  6. Step 6: Final answer
    x = 16,665.00

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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.