Home / 20,814.86-31,197.44-10,949.06

Finding the Fourth Proportional to 20,814.86, 31,197.44 and 10,949.06

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Solution

The fourth proportional to 20,814.86, 31,197.44 and 10,949.06 is: 16,410.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,814.86 : 31,197.44 = 10,949.06 : x
  2. Step 2: Convert to fraction form
    20,814.86/31,197.44 = 10,949.06/x
  3. Step 3: Cross multiply
    20,814.86x = 31,197.44 × 10,949.06
  4. Step 4: Simplify right side
    20,814.86x = 341,582,642.41
  5. Step 5: Solve for x
    x = 341,582,642.41/20,814.86
  6. Step 6: Final answer
    x = 16,410.52

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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.