Home / 20,836.56-31,254.82-10,445.88

Finding the Fourth Proportional to 20,836.56, 31,254.82 and 10,445.88

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Solution

The fourth proportional to 20,836.56, 31,254.82 and 10,445.88 is: 15,668.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,836.56 : 31,254.82 = 10,445.88 : x
  2. Step 2: Convert to fraction form
    20,836.56/31,254.82 = 10,445.88/x
  3. Step 3: Cross multiply
    20,836.56x = 31,254.82 × 10,445.88
  4. Step 4: Simplify right side
    20,836.56x = 326,484,099.14
  5. Step 5: Solve for x
    x = 326,484,099.14/20,836.56
  6. Step 6: Final answer
    x = 15,668.81

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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.