Home / 21,426.59-29,583.30-13,363.38

Finding the Fourth Proportional to 21,426.59, 29,583.30 and 13,363.38

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Solution

The fourth proportional to 21,426.59, 29,583.30 and 13,363.38 is: 18,450.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,426.59 : 29,583.30 = 13,363.38 : x
  2. Step 2: Convert to fraction form
    21,426.59/29,583.30 = 13,363.38/x
  3. Step 3: Cross multiply
    21,426.59x = 29,583.30 × 13,363.38
  4. Step 4: Simplify right side
    21,426.59x = 395,332,879.55
  5. Step 5: Solve for x
    x = 395,332,879.55/21,426.59
  6. Step 6: Final answer
    x = 18,450.58

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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.