Home / 21,034.08-31,544.29-6,990.33

Finding the Fourth Proportional to 21,034.08, 31,544.29 and 6,990.33

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Solution

The fourth proportional to 21,034.08, 31,544.29 and 6,990.33 is: 10,483.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,034.08 : 31,544.29 = 6,990.33 : x
  2. Step 2: Convert to fraction form
    21,034.08/31,544.29 = 6,990.33/x
  3. Step 3: Cross multiply
    21,034.08x = 31,544.29 × 6,990.33
  4. Step 4: Simplify right side
    21,034.08x = 220,504,996.72
  5. Step 5: Solve for x
    x = 220,504,996.72/21,034.08
  6. Step 6: Final answer
    x = 10,483.23

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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.