Home / 21,268.74-29,351.01-11,708.37

Finding the Fourth Proportional to 21,268.74, 29,351.01 and 11,708.37

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Solution

The fourth proportional to 21,268.74, 29,351.01 and 11,708.37 is: 16,157.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,268.74 : 29,351.01 = 11,708.37 : x
  2. Step 2: Convert to fraction form
    21,268.74/29,351.01 = 11,708.37/x
  3. Step 3: Cross multiply
    21,268.74x = 29,351.01 × 11,708.37
  4. Step 4: Simplify right side
    21,268.74x = 343,652,484.95
  5. Step 5: Solve for x
    x = 343,652,484.95/21,268.74
  6. Step 6: Final answer
    x = 16,157.63

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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.