Home / 21,202.58-29,259.42-11,771.18

Finding the Fourth Proportional to 21,202.58, 29,259.42 and 11,771.18

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Solution

The fourth proportional to 21,202.58, 29,259.42 and 11,771.18 is: 16,244.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,202.58 : 29,259.42 = 11,771.18 : x
  2. Step 2: Convert to fraction form
    21,202.58/29,259.42 = 11,771.18/x
  3. Step 3: Cross multiply
    21,202.58x = 29,259.42 × 11,771.18
  4. Step 4: Simplify right side
    21,202.58x = 344,417,899.52
  5. Step 5: Solve for x
    x = 344,417,899.52/21,202.58
  6. Step 6: Final answer
    x = 16,244.15

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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.