Home / 21,182.42-29,235.22-11,754.02

Finding the Fourth Proportional to 21,182.42, 29,235.22 and 11,754.02

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Solution

The fourth proportional to 21,182.42, 29,235.22 and 11,754.02 is: 16,222.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,182.42 : 29,235.22 = 11,754.02 : x
  2. Step 2: Convert to fraction form
    21,182.42/29,235.22 = 11,754.02/x
  3. Step 3: Cross multiply
    21,182.42x = 29,235.22 × 11,754.02
  4. Step 4: Simplify right side
    21,182.42x = 343,631,360.58
  5. Step 5: Solve for x
    x = 343,631,360.58/21,182.42
  6. Step 6: Final answer
    x = 16,222.48

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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.