Home / 29,808.36-41,121.36-21,429.72

Finding the Fourth Proportional to 29,808.36, 41,121.36 and 21,429.72

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Solution

The fourth proportional to 29,808.36, 41,121.36 and 21,429.72 is: 29,562.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,808.36 : 41,121.36 = 21,429.72 : x
  2. Step 2: Convert to fraction form
    29,808.36/41,121.36 = 21,429.72/x
  3. Step 3: Cross multiply
    29,808.36x = 41,121.36 × 21,429.72
  4. Step 4: Simplify right side
    29,808.36x = 881,219,230.82
  5. Step 5: Solve for x
    x = 881,219,230.82/29,808.36
  6. Step 6: Final answer
    x = 29,562.82

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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.