Home / 21,372.56-29,493.98-11,813.10

Finding the Fourth Proportional to 21,372.56, 29,493.98 and 11,813.10

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Solution

The fourth proportional to 21,372.56, 29,493.98 and 11,813.10 is: 16,301.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,372.56 : 29,493.98 = 11,813.10 : x
  2. Step 2: Convert to fraction form
    21,372.56/29,493.98 = 11,813.10/x
  3. Step 3: Cross multiply
    21,372.56x = 29,493.98 × 11,813.10
  4. Step 4: Simplify right side
    21,372.56x = 348,415,335.14
  5. Step 5: Solve for x
    x = 348,415,335.14/21,372.56
  6. Step 6: Final answer
    x = 16,301.99

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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.