Home / 21,741.21-29,998.76-20,633.94

Finding the Fourth Proportional to 21,741.21, 29,998.76 and 20,633.94

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Solution

The fourth proportional to 21,741.21, 29,998.76 and 20,633.94 is: 28,470.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,741.21 : 29,998.76 = 20,633.94 : x
  2. Step 2: Convert to fraction form
    21,741.21/29,998.76 = 20,633.94/x
  3. Step 3: Cross multiply
    21,741.21x = 29,998.76 × 20,633.94
  4. Step 4: Simplify right side
    21,741.21x = 618,992,510.74
  5. Step 5: Solve for x
    x = 618,992,510.74/21,741.21
  6. Step 6: Final answer
    x = 28,470.93

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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.