Home / 21,049.66-31,544.39-15,459.14

Finding the Fourth Proportional to 21,049.66, 31,544.39 and 15,459.14

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Solution

The fourth proportional to 21,049.66, 31,544.39 and 15,459.14 is: 23,166.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,049.66 : 31,544.39 = 15,459.14 : x
  2. Step 2: Convert to fraction form
    21,049.66/31,544.39 = 15,459.14/x
  3. Step 3: Cross multiply
    21,049.66x = 31,544.39 × 15,459.14
  4. Step 4: Simplify right side
    21,049.66x = 487,649,141.22
  5. Step 5: Solve for x
    x = 487,649,141.22/21,049.66
  6. Step 6: Final answer
    x = 23,166.60

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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.