Home / 21,182.88-29,232.87-11,752.05

Finding the Fourth Proportional to 21,182.88, 29,232.87 and 11,752.05

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Solution

The fourth proportional to 21,182.88, 29,232.87 and 11,752.05 is: 16,218.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,182.88 : 29,232.87 = 11,752.05 : x
  2. Step 2: Convert to fraction form
    21,182.88/29,232.87 = 11,752.05/x
  3. Step 3: Cross multiply
    21,182.88x = 29,232.87 × 11,752.05
  4. Step 4: Simplify right side
    21,182.88x = 343,546,149.88
  5. Step 5: Solve for x
    x = 343,546,149.88/21,182.88
  6. Step 6: Final answer
    x = 16,218.10

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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.