Home / 21,314.77-29,414.60-11,755.00

Finding the Fourth Proportional to 21,314.77, 29,414.60 and 11,755.00

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Solution

The fourth proportional to 21,314.77, 29,414.60 and 11,755.00 is: 16,222.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,314.77 : 29,414.60 = 11,755.00 : x
  2. Step 2: Convert to fraction form
    21,314.77/29,414.60 = 11,755.00/x
  3. Step 3: Cross multiply
    21,314.77x = 29,414.60 × 11,755.00
  4. Step 4: Simplify right side
    21,314.77x = 345,768,417.15
  5. Step 5: Solve for x
    x = 345,768,417.15/21,314.77
  6. Step 6: Final answer
    x = 16,222.01

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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.