Home / 21,282.75-31,920.48-5,696.73

Finding the Fourth Proportional to 21,282.75, 31,920.48 and 5,696.73

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Solution

The fourth proportional to 21,282.75, 31,920.48 and 5,696.73 is: 8,544.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,282.75 : 31,920.48 = 5,696.73 : x
  2. Step 2: Convert to fraction form
    21,282.75/31,920.48 = 5,696.73/x
  3. Step 3: Cross multiply
    21,282.75x = 31,920.48 × 5,696.73
  4. Step 4: Simplify right side
    21,282.75x = 181,842,356.03
  5. Step 5: Solve for x
    x = 181,842,356.03/21,282.75
  6. Step 6: Final answer
    x = 8,544.12

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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.