Home / 21,182.96-29,232.48-11,753.36

Finding the Fourth Proportional to 21,182.96, 29,232.48 and 11,753.36

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Solution

The fourth proportional to 21,182.96, 29,232.48 and 11,753.36 is: 16,219.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,182.96 : 29,232.48 = 11,753.36 : x
  2. Step 2: Convert to fraction form
    21,182.96/29,232.48 = 11,753.36/x
  3. Step 3: Cross multiply
    21,182.96x = 29,232.48 × 11,753.36
  4. Step 4: Simplify right side
    21,182.96x = 343,579,861.13
  5. Step 5: Solve for x
    x = 343,579,861.13/21,182.96
  6. Step 6: Final answer
    x = 16,219.63

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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.