Home / 29,005.62-39,985.44-20,481.18

Finding the Fourth Proportional to 29,005.62, 39,985.44 and 20,481.18

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Solution

The fourth proportional to 29,005.62, 39,985.44 and 20,481.18 is: 28,234.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,005.62 : 39,985.44 = 20,481.18 : x
  2. Step 2: Convert to fraction form
    29,005.62/39,985.44 = 20,481.18/x
  3. Step 3: Cross multiply
    29,005.62x = 39,985.44 × 20,481.18
  4. Step 4: Simplify right side
    29,005.62x = 818,948,994.02
  5. Step 5: Solve for x
    x = 818,948,994.02/29,005.62
  6. Step 6: Final answer
    x = 28,234.15

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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.