Home / 22,676.88-31,291.92-21,005.04

Finding the Fourth Proportional to 22,676.88, 31,291.92 and 21,005.04

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Solution

The fourth proportional to 22,676.88, 31,291.92 and 21,005.04 is: 28,984.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,676.88 : 31,291.92 = 21,005.04 : x
  2. Step 2: Convert to fraction form
    22,676.88/31,291.92 = 21,005.04/x
  3. Step 3: Cross multiply
    22,676.88x = 31,291.92 × 21,005.04
  4. Step 4: Simplify right side
    22,676.88x = 657,288,031.28
  5. Step 5: Solve for x
    x = 657,288,031.28/22,676.88
  6. Step 6: Final answer
    x = 28,984.94

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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.