Home / 21,998.20-32,987.04-6,412.72

Finding the Fourth Proportional to 21,998.20, 32,987.04 and 6,412.72

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Solution

The fourth proportional to 21,998.20, 32,987.04 and 6,412.72 is: 9,616.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,998.20 : 32,987.04 = 6,412.72 : x
  2. Step 2: Convert to fraction form
    21,998.20/32,987.04 = 6,412.72/x
  3. Step 3: Cross multiply
    21,998.20x = 32,987.04 × 6,412.72
  4. Step 4: Simplify right side
    21,998.20x = 211,536,651.15
  5. Step 5: Solve for x
    x = 211,536,651.15/21,998.20
  6. Step 6: Final answer
    x = 9,616.09

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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.