Home / 20,515.38-30,746.33-9,262.35

Finding the Fourth Proportional to 20,515.38, 30,746.33 and 9,262.35

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Solution

The fourth proportional to 20,515.38, 30,746.33 and 9,262.35 is: 13,881.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,515.38 : 30,746.33 = 9,262.35 : x
  2. Step 2: Convert to fraction form
    20,515.38/30,746.33 = 9,262.35/x
  3. Step 3: Cross multiply
    20,515.38x = 30,746.33 × 9,262.35
  4. Step 4: Simplify right side
    20,515.38x = 284,783,310.20
  5. Step 5: Solve for x
    x = 284,783,310.20/20,515.38
  6. Step 6: Final answer
    x = 13,881.46

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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.