Home / 21,660.62-32,487.95-6,871.03

Finding the Fourth Proportional to 21,660.62, 32,487.95 and 6,871.03

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Solution

The fourth proportional to 21,660.62, 32,487.95 and 6,871.03 is: 10,305.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,660.62 : 32,487.95 = 6,871.03 : x
  2. Step 2: Convert to fraction form
    21,660.62/32,487.95 = 6,871.03/x
  3. Step 3: Cross multiply
    21,660.62x = 32,487.95 × 6,871.03
  4. Step 4: Simplify right side
    21,660.62x = 223,225,615.05
  5. Step 5: Solve for x
    x = 223,225,615.05/21,660.62
  6. Step 6: Final answer
    x = 10,305.60

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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.