Home / 21,463.38-29,619.47-11,904.73

Finding the Fourth Proportional to 21,463.38, 29,619.47 and 11,904.73

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Solution

The fourth proportional to 21,463.38, 29,619.47 and 11,904.73 is: 16,428.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,463.38 : 29,619.47 = 11,904.73 : x
  2. Step 2: Convert to fraction form
    21,463.38/29,619.47 = 11,904.73/x
  3. Step 3: Cross multiply
    21,463.38x = 29,619.47 × 11,904.73
  4. Step 4: Simplify right side
    21,463.38x = 352,611,832.11
  5. Step 5: Solve for x
    x = 352,611,832.11/21,463.38
  6. Step 6: Final answer
    x = 16,428.53

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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.