Home / 21,371.58-29,492.91-12,424.73

Finding the Fourth Proportional to 21,371.58, 29,492.91 and 12,424.73

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Solution

The fourth proportional to 21,371.58, 29,492.91 and 12,424.73 is: 17,146.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,371.58 : 29,492.91 = 12,424.73 : x
  2. Step 2: Convert to fraction form
    21,371.58/29,492.91 = 12,424.73/x
  3. Step 3: Cross multiply
    21,371.58x = 29,492.91 × 12,424.73
  4. Step 4: Simplify right side
    21,371.58x = 366,441,296.20
  5. Step 5: Solve for x
    x = 366,441,296.20/21,371.58
  6. Step 6: Final answer
    x = 17,146.20

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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.