Home / 21,881.43-30,132.84-19,008.86

Finding the Fourth Proportional to 21,881.43, 30,132.84 and 19,008.86

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Solution

The fourth proportional to 21,881.43, 30,132.84 and 19,008.86 is: 26,177.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,881.43 : 30,132.84 = 19,008.86 : x
  2. Step 2: Convert to fraction form
    21,881.43/30,132.84 = 19,008.86/x
  3. Step 3: Cross multiply
    21,881.43x = 30,132.84 × 19,008.86
  4. Step 4: Simplify right side
    21,881.43x = 572,790,786.30
  5. Step 5: Solve for x
    x = 572,790,786.30/21,881.43
  6. Step 6: Final answer
    x = 26,177.03

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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.