Home / 21,174.55-31,761.83-6,383.45

Finding the Fourth Proportional to 21,174.55, 31,761.83 and 6,383.45

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Solution

The fourth proportional to 21,174.55, 31,761.83 and 6,383.45 is: 9,575.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,174.55 : 31,761.83 = 6,383.45 : x
  2. Step 2: Convert to fraction form
    21,174.55/31,761.83 = 6,383.45/x
  3. Step 3: Cross multiply
    21,174.55x = 31,761.83 × 6,383.45
  4. Step 4: Simplify right side
    21,174.55x = 202,750,149.08
  5. Step 5: Solve for x
    x = 202,750,149.08/21,174.55
  6. Step 6: Final answer
    x = 9,575.18

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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.