Home / 21,675.04-32,485.94-12,322.90

Finding the Fourth Proportional to 21,675.04, 32,485.94 and 12,322.90

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Solution

The fourth proportional to 21,675.04, 32,485.94 and 12,322.90 is: 18,469.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,675.04 : 32,485.94 = 12,322.90 : x
  2. Step 2: Convert to fraction form
    21,675.04/32,485.94 = 12,322.90/x
  3. Step 3: Cross multiply
    21,675.04x = 32,485.94 × 12,322.90
  4. Step 4: Simplify right side
    21,675.04x = 400,320,990.03
  5. Step 5: Solve for x
    x = 400,320,990.03/21,675.04
  6. Step 6: Final answer
    x = 18,469.22

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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.