Home / 21,268.35-29,350.59-11,709.36

Finding the Fourth Proportional to 21,268.35, 29,350.59 and 11,709.36

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Solution

The fourth proportional to 21,268.35, 29,350.59 and 11,709.36 is: 16,159.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,268.35 : 29,350.59 = 11,709.36 : x
  2. Step 2: Convert to fraction form
    21,268.35/29,350.59 = 11,709.36/x
  3. Step 3: Cross multiply
    21,268.35x = 29,350.59 × 11,709.36
  4. Step 4: Simplify right side
    21,268.35x = 343,676,624.52
  5. Step 5: Solve for x
    x = 343,676,624.52/21,268.35
  6. Step 6: Final answer
    x = 16,159.06

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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.