Home / 21,977.80-32,965.64-7,184.76

Finding the Fourth Proportional to 21,977.80, 32,965.64 and 7,184.76

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Solution

The fourth proportional to 21,977.80, 32,965.64 and 7,184.76 is: 10,776.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,977.80 : 32,965.64 = 7,184.76 : x
  2. Step 2: Convert to fraction form
    21,977.80/32,965.64 = 7,184.76/x
  3. Step 3: Cross multiply
    21,977.80x = 32,965.64 × 7,184.76
  4. Step 4: Simplify right side
    21,977.80x = 236,850,211.65
  5. Step 5: Solve for x
    x = 236,850,211.65/21,977.80
  6. Step 6: Final answer
    x = 10,776.79

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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.