Home / 20,590.32-30,885.26-5,007.96

Finding the Fourth Proportional to 20,590.32, 30,885.26 and 5,007.96

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Solution

The fourth proportional to 20,590.32, 30,885.26 and 5,007.96 is: 7,511.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,590.32 : 30,885.26 = 5,007.96 : x
  2. Step 2: Convert to fraction form
    20,590.32/30,885.26 = 5,007.96/x
  3. Step 3: Cross multiply
    20,590.32x = 30,885.26 × 5,007.96
  4. Step 4: Simplify right side
    20,590.32x = 154,672,121.63
  5. Step 5: Solve for x
    x = 154,672,121.63/20,590.32
  6. Step 6: Final answer
    x = 7,511.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.