Home / 20,609.32-30,910.39-9,515.06

Finding the Fourth Proportional to 20,609.32, 30,910.39 and 9,515.06

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Solution

The fourth proportional to 20,609.32, 30,910.39 and 9,515.06 is: 14,270.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,609.32 : 30,910.39 = 9,515.06 : x
  2. Step 2: Convert to fraction form
    20,609.32/30,910.39 = 9,515.06/x
  3. Step 3: Cross multiply
    20,609.32x = 30,910.39 × 9,515.06
  4. Step 4: Simplify right side
    20,609.32x = 294,114,215.47
  5. Step 5: Solve for x
    x = 294,114,215.47/20,609.32
  6. Step 6: Final answer
    x = 14,270.93

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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.