Home / 21,464.67-29,621.52-11,904.75

Finding the Fourth Proportional to 21,464.67, 29,621.52 and 11,904.75

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Solution

The fourth proportional to 21,464.67, 29,621.52 and 11,904.75 is: 16,428.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,464.67 : 29,621.52 = 11,904.75 : x
  2. Step 2: Convert to fraction form
    21,464.67/29,621.52 = 11,904.75/x
  3. Step 3: Cross multiply
    21,464.67x = 29,621.52 × 11,904.75
  4. Step 4: Simplify right side
    21,464.67x = 352,636,790.22
  5. Step 5: Solve for x
    x = 352,636,790.22/21,464.67
  6. Step 6: Final answer
    x = 16,428.71

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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.