Home / 21,575.20-32,367.42-12,219.64

Finding the Fourth Proportional to 21,575.20, 32,367.42 and 12,219.64

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Solution

The fourth proportional to 21,575.20, 32,367.42 and 12,219.64 is: 18,332.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,575.20 : 32,367.42 = 12,219.64 : x
  2. Step 2: Convert to fraction form
    21,575.20/32,367.42 = 12,219.64/x
  3. Step 3: Cross multiply
    21,575.20x = 32,367.42 × 12,219.64
  4. Step 4: Simplify right side
    21,575.20x = 395,518,220.13
  5. Step 5: Solve for x
    x = 395,518,220.13/21,575.20
  6. Step 6: Final answer
    x = 18,332.08

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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.