Home / 20,590.18-30,884.04-12,694.10

Finding the Fourth Proportional to 20,590.18, 30,884.04 and 12,694.10

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Solution

The fourth proportional to 20,590.18, 30,884.04 and 12,694.10 is: 19,040.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,590.18 : 30,884.04 = 12,694.10 : x
  2. Step 2: Convert to fraction form
    20,590.18/30,884.04 = 12,694.10/x
  3. Step 3: Cross multiply
    20,590.18x = 30,884.04 × 12,694.10
  4. Step 4: Simplify right side
    20,590.18x = 392,045,092.16
  5. Step 5: Solve for x
    x = 392,045,092.16/20,590.18
  6. Step 6: Final answer
    x = 19,040.39

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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.