Home / 21,559.83-29,749.17-11,998.08

Finding the Fourth Proportional to 21,559.83, 29,749.17 and 11,998.08

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Solution

The fourth proportional to 21,559.83, 29,749.17 and 11,998.08 is: 16,555.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,559.83 : 29,749.17 = 11,998.08 : x
  2. Step 2: Convert to fraction form
    21,559.83/29,749.17 = 11,998.08/x
  3. Step 3: Cross multiply
    21,559.83x = 29,749.17 × 11,998.08
  4. Step 4: Simplify right side
    21,559.83x = 356,932,921.59
  5. Step 5: Solve for x
    x = 356,932,921.59/21,559.83
  6. Step 6: Final answer
    x = 16,555.46

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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.