Home / 21,259.35-29,338.14-11,700.33

Finding the Fourth Proportional to 21,259.35, 29,338.14 and 11,700.33

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Solution

The fourth proportional to 21,259.35, 29,338.14 and 11,700.33 is: 16,146.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,259.35 : 29,338.14 = 11,700.33 : x
  2. Step 2: Convert to fraction form
    21,259.35/29,338.14 = 11,700.33/x
  3. Step 3: Cross multiply
    21,259.35x = 29,338.14 × 11,700.33
  4. Step 4: Simplify right side
    21,259.35x = 343,265,919.59
  5. Step 5: Solve for x
    x = 343,265,919.59/21,259.35
  6. Step 6: Final answer
    x = 16,146.59

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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.