Home / 21,084.96-31,617.03-7,040.16

Finding the Fourth Proportional to 21,084.96, 31,617.03 and 7,040.16

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Solution

The fourth proportional to 21,084.96, 31,617.03 and 7,040.16 is: 10,556.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,084.96 : 31,617.03 = 7,040.16 : x
  2. Step 2: Convert to fraction form
    21,084.96/31,617.03 = 7,040.16/x
  3. Step 3: Cross multiply
    21,084.96x = 31,617.03 × 7,040.16
  4. Step 4: Simplify right side
    21,084.96x = 222,588,949.92
  5. Step 5: Solve for x
    x = 222,588,949.92/21,084.96
  6. Step 6: Final answer
    x = 10,556.76

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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.