Home / 21,230.22-29,297.52-11,798.58

Finding the Fourth Proportional to 21,230.22, 29,297.52 and 11,798.58

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Solution

The fourth proportional to 21,230.22, 29,297.52 and 11,798.58 is: 16,281.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,230.22 : 29,297.52 = 11,798.58 : x
  2. Step 2: Convert to fraction form
    21,230.22/29,297.52 = 11,798.58/x
  3. Step 3: Cross multiply
    21,230.22x = 29,297.52 × 11,798.58
  4. Step 4: Simplify right side
    21,230.22x = 345,669,133.52
  5. Step 5: Solve for x
    x = 345,669,133.52/21,230.22
  6. Step 6: Final answer
    x = 16,281.94

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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.