Home / 21,160.08-29,167.20-16,676.88

Finding the Fourth Proportional to 21,160.08, 29,167.20 and 16,676.88

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Solution

The fourth proportional to 21,160.08, 29,167.20 and 16,676.88 is: 22,987.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,160.08 : 29,167.20 = 16,676.88 : x
  2. Step 2: Convert to fraction form
    21,160.08/29,167.20 = 16,676.88/x
  3. Step 3: Cross multiply
    21,160.08x = 29,167.20 × 16,676.88
  4. Step 4: Simplify right side
    21,160.08x = 486,417,894.34
  5. Step 5: Solve for x
    x = 486,417,894.34/21,160.08
  6. Step 6: Final answer
    x = 22,987.53

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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.