Home / 20,648.19-30,941.90-9,236.28

Finding the Fourth Proportional to 20,648.19, 30,941.90 and 9,236.28

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Solution

The fourth proportional to 20,648.19, 30,941.90 and 9,236.28 is: 13,840.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,648.19 : 30,941.90 = 9,236.28 : x
  2. Step 2: Convert to fraction form
    20,648.19/30,941.90 = 9,236.28/x
  3. Step 3: Cross multiply
    20,648.19x = 30,941.90 × 9,236.28
  4. Step 4: Simplify right side
    20,648.19x = 285,788,052.13
  5. Step 5: Solve for x
    x = 285,788,052.13/20,648.19
  6. Step 6: Final answer
    x = 13,840.83

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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.