Home / 21,491.08-29,649.22-12,410.44

Finding the Fourth Proportional to 21,491.08, 29,649.22 and 12,410.44

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Solution

The fourth proportional to 21,491.08, 29,649.22 and 12,410.44 is: 17,121.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,491.08 : 29,649.22 = 12,410.44 : x
  2. Step 2: Convert to fraction form
    21,491.08/29,649.22 = 12,410.44/x
  3. Step 3: Cross multiply
    21,491.08x = 29,649.22 × 12,410.44
  4. Step 4: Simplify right side
    21,491.08x = 367,959,865.86
  5. Step 5: Solve for x
    x = 367,959,865.86/21,491.08
  6. Step 6: Final answer
    x = 17,121.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.