Home / 21,965.12-32,949.52-6,382.76

Finding the Fourth Proportional to 21,965.12, 32,949.52 and 6,382.76

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Solution

The fourth proportional to 21,965.12, 32,949.52 and 6,382.76 is: 9,574.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,965.12 : 32,949.52 = 6,382.76 : x
  2. Step 2: Convert to fraction form
    21,965.12/32,949.52 = 6,382.76/x
  3. Step 3: Cross multiply
    21,965.12x = 32,949.52 × 6,382.76
  4. Step 4: Simplify right side
    21,965.12x = 210,308,878.28
  5. Step 5: Solve for x
    x = 210,308,878.28/21,965.12
  6. Step 6: Final answer
    x = 9,574.67

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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.