Home / 21,325.58-29,429.41-11,765.80

Finding the Fourth Proportional to 21,325.58, 29,429.41 and 11,765.80

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Solution

The fourth proportional to 21,325.58, 29,429.41 and 11,765.80 is: 16,236.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,325.58 : 29,429.41 = 11,765.80 : x
  2. Step 2: Convert to fraction form
    21,325.58/29,429.41 = 11,765.80/x
  3. Step 3: Cross multiply
    21,325.58x = 29,429.41 × 11,765.80
  4. Step 4: Simplify right side
    21,325.58x = 346,260,552.18
  5. Step 5: Solve for x
    x = 346,260,552.18/21,325.58
  6. Step 6: Final answer
    x = 16,236.86

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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.