Home / 21,630.43-32,449.98-9,150.43

Finding the Fourth Proportional to 21,630.43, 32,449.98 and 9,150.43

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Solution

The fourth proportional to 21,630.43, 32,449.98 and 9,150.43 is: 13,727.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,630.43 : 32,449.98 = 9,150.43 : x
  2. Step 2: Convert to fraction form
    21,630.43/32,449.98 = 9,150.43/x
  3. Step 3: Cross multiply
    21,630.43x = 32,449.98 × 9,150.43
  4. Step 4: Simplify right side
    21,630.43x = 296,931,270.49
  5. Step 5: Solve for x
    x = 296,931,270.49/21,630.43
  6. Step 6: Final answer
    x = 13,727.48

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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.