Home / 21,630.21-32,449.63-9,150.18

Finding the Fourth Proportional to 21,630.21, 32,449.63 and 9,150.18

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Solution

The fourth proportional to 21,630.21, 32,449.63 and 9,150.18 is: 13,727.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,630.21 : 32,449.63 = 9,150.18 : x
  2. Step 2: Convert to fraction form
    21,630.21/32,449.63 = 9,150.18/x
  3. Step 3: Cross multiply
    21,630.21x = 32,449.63 × 9,150.18
  4. Step 4: Simplify right side
    21,630.21x = 296,919,793.19
  5. Step 5: Solve for x
    x = 296,919,793.19/21,630.21
  6. Step 6: Final answer
    x = 13,727.09

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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.