Home / 21,586.60-32,334.54-9,909.64

Finding the Fourth Proportional to 21,586.60, 32,334.54 and 9,909.64

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Solution

The fourth proportional to 21,586.60, 32,334.54 and 9,909.64 is: 14,843.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,586.60 : 32,334.54 = 9,909.64 : x
  2. Step 2: Convert to fraction form
    21,586.60/32,334.54 = 9,909.64/x
  3. Step 3: Cross multiply
    21,586.60x = 32,334.54 × 9,909.64
  4. Step 4: Simplify right side
    21,586.60x = 320,423,650.97
  5. Step 5: Solve for x
    x = 320,423,650.97/21,586.60
  6. Step 6: Final answer
    x = 14,843.64

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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.