Home / 21,041.28-31,544.24-9,186.03

Finding the Fourth Proportional to 21,041.28, 31,544.24 and 9,186.03

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Solution

The fourth proportional to 21,041.28, 31,544.24 and 9,186.03 is: 13,771.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,041.28 : 31,544.24 = 9,186.03 : x
  2. Step 2: Convert to fraction form
    21,041.28/31,544.24 = 9,186.03/x
  3. Step 3: Cross multiply
    21,041.28x = 31,544.24 × 9,186.03
  4. Step 4: Simplify right side
    21,041.28x = 289,766,334.97
  5. Step 5: Solve for x
    x = 289,766,334.97/21,041.28
  6. Step 6: Final answer
    x = 13,771.33

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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.