Home / 21,368.59-29,489.27-11,936.95

Finding the Fourth Proportional to 21,368.59, 29,489.27 and 11,936.95

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Solution

The fourth proportional to 21,368.59, 29,489.27 and 11,936.95 is: 16,473.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,368.59 : 29,489.27 = 11,936.95 : x
  2. Step 2: Convert to fraction form
    21,368.59/29,489.27 = 11,936.95/x
  3. Step 3: Cross multiply
    21,368.59x = 29,489.27 × 11,936.95
  4. Step 4: Simplify right side
    21,368.59x = 352,011,941.53
  5. Step 5: Solve for x
    x = 352,011,941.53/21,368.59
  6. Step 6: Final answer
    x = 16,473.33

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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.