Home / 21,049.18-31,523.48-11,665.92

Finding the Fourth Proportional to 21,049.18, 31,523.48 and 11,665.92

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Solution

The fourth proportional to 21,049.18, 31,523.48 and 11,665.92 is: 17,471.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,049.18 : 31,523.48 = 11,665.92 : x
  2. Step 2: Convert to fraction form
    21,049.18/31,523.48 = 11,665.92/x
  3. Step 3: Cross multiply
    21,049.18x = 31,523.48 × 11,665.92
  4. Step 4: Simplify right side
    21,049.18x = 367,750,395.80
  5. Step 5: Solve for x
    x = 367,750,395.80/21,049.18
  6. Step 6: Final answer
    x = 17,471.01

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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.