Home / 21,174.08-31,773.92-7,332.80

Finding the Fourth Proportional to 21,174.08, 31,773.92 and 7,332.80

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Solution

The fourth proportional to 21,174.08, 31,773.92 and 7,332.80 is: 11,003.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,174.08 : 31,773.92 = 7,332.80 : x
  2. Step 2: Convert to fraction form
    21,174.08/31,773.92 = 7,332.80/x
  3. Step 3: Cross multiply
    21,174.08x = 31,773.92 × 7,332.80
  4. Step 4: Simplify right side
    21,174.08x = 232,991,800.58
  5. Step 5: Solve for x
    x = 232,991,800.58/21,174.08
  6. Step 6: Final answer
    x = 11,003.63

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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.