Home / 21,463.83-29,618.60-11,904.21

Finding the Fourth Proportional to 21,463.83, 29,618.60 and 11,904.21

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Solution

The fourth proportional to 21,463.83, 29,618.60 and 11,904.21 is: 16,426.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,463.83 : 29,618.60 = 11,904.21 : x
  2. Step 2: Convert to fraction form
    21,463.83/29,618.60 = 11,904.21/x
  3. Step 3: Cross multiply
    21,463.83x = 29,618.60 × 11,904.21
  4. Step 4: Simplify right side
    21,463.83x = 352,585,974.78
  5. Step 5: Solve for x
    x = 352,585,974.78/21,463.83
  6. Step 6: Final answer
    x = 16,426.98

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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.