Home / 21,546.80-32,247.30-18,922.40

Finding the Fourth Proportional to 21,546.80, 32,247.30 and 18,922.40

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Solution

The fourth proportional to 21,546.80, 32,247.30 and 18,922.40 is: 28,319.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,546.80 : 32,247.30 = 18,922.40 : x
  2. Step 2: Convert to fraction form
    21,546.80/32,247.30 = 18,922.40/x
  3. Step 3: Cross multiply
    21,546.80x = 32,247.30 × 18,922.40
  4. Step 4: Simplify right side
    21,546.80x = 610,196,309.52
  5. Step 5: Solve for x
    x = 610,196,309.52/21,546.80
  6. Step 6: Final answer
    x = 28,319.58

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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.