Home / 21,273.30-31,911.15-6,482.70

Finding the Fourth Proportional to 21,273.30, 31,911.15 and 6,482.70

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Solution

The fourth proportional to 21,273.30, 31,911.15 and 6,482.70 is: 9,724.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,273.30 : 31,911.15 = 6,482.70 : x
  2. Step 2: Convert to fraction form
    21,273.30/31,911.15 = 6,482.70/x
  3. Step 3: Cross multiply
    21,273.30x = 31,911.15 × 6,482.70
  4. Step 4: Simplify right side
    21,273.30x = 206,870,412.11
  5. Step 5: Solve for x
    x = 206,870,412.11/21,273.30
  6. Step 6: Final answer
    x = 9,724.42

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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.