Home / 30,067.20-41,492.40-16,638.88

Finding the Fourth Proportional to 30,067.20, 41,492.40 and 16,638.88

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Solution

The fourth proportional to 30,067.20, 41,492.40 and 16,638.88 is: 22,961.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,067.20 : 41,492.40 = 16,638.88 : x
  2. Step 2: Convert to fraction form
    30,067.20/41,492.40 = 16,638.88/x
  3. Step 3: Cross multiply
    30,067.20x = 41,492.40 × 16,638.88
  4. Step 4: Simplify right side
    30,067.20x = 690,387,064.51
  5. Step 5: Solve for x
    x = 690,387,064.51/30,067.20
  6. Step 6: Final answer
    x = 22,961.47

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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.