Home / 21,384.58-29,510.82-11,952.94

Finding the Fourth Proportional to 21,384.58, 29,510.82 and 11,952.94

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Solution

The fourth proportional to 21,384.58, 29,510.82 and 11,952.94 is: 16,495.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,384.58 : 29,510.82 = 11,952.94 : x
  2. Step 2: Convert to fraction form
    21,384.58/29,510.82 = 11,952.94/x
  3. Step 3: Cross multiply
    21,384.58x = 29,510.82 × 11,952.94
  4. Step 4: Simplify right side
    21,384.58x = 352,741,060.81
  5. Step 5: Solve for x
    x = 352,741,060.81/21,384.58
  6. Step 6: Final answer
    x = 16,495.11

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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.