Home / 21,384.84-29,508.51-11,823.44

Finding the Fourth Proportional to 21,384.84, 29,508.51 and 11,823.44

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Solution

The fourth proportional to 21,384.84, 29,508.51 and 11,823.44 is: 16,314.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,384.84 : 29,508.51 = 11,823.44 : x
  2. Step 2: Convert to fraction form
    21,384.84/29,508.51 = 11,823.44/x
  3. Step 3: Cross multiply
    21,384.84x = 29,508.51 × 11,823.44
  4. Step 4: Simplify right side
    21,384.84x = 348,892,110.39
  5. Step 5: Solve for x
    x = 348,892,110.39/21,384.84
  6. Step 6: Final answer
    x = 16,314.92

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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.