Home / 21,873.12-32,795.56-12,009.75

Finding the Fourth Proportional to 21,873.12, 32,795.56 and 12,009.75

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Solution

The fourth proportional to 21,873.12, 32,795.56 and 12,009.75 is: 18,006.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,873.12 : 32,795.56 = 12,009.75 : x
  2. Step 2: Convert to fraction form
    21,873.12/32,795.56 = 12,009.75/x
  3. Step 3: Cross multiply
    21,873.12x = 32,795.56 × 12,009.75
  4. Step 4: Simplify right side
    21,873.12x = 393,866,519.44
  5. Step 5: Solve for x
    x = 393,866,519.44/21,873.12
  6. Step 6: Final answer
    x = 18,006.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.