Home / 19,821.41-29,729.23-5,777.66

Finding the Fourth Proportional to 19,821.41, 29,729.23 and 5,777.66

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Solution

The fourth proportional to 19,821.41, 29,729.23 and 5,777.66 is: 8,665.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,821.41 : 29,729.23 = 5,777.66 : x
  2. Step 2: Convert to fraction form
    19,821.41/29,729.23 = 5,777.66/x
  3. Step 3: Cross multiply
    19,821.41x = 29,729.23 × 5,777.66
  4. Step 4: Simplify right side
    19,821.41x = 171,765,383.00
  5. Step 5: Solve for x
    x = 171,765,383.00/19,821.41
  6. Step 6: Final answer
    x = 8,665.65

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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.