Home / 21,829.20-32,748.60-7,035.60

Finding the Fourth Proportional to 21,829.20, 32,748.60 and 7,035.60

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Solution

The fourth proportional to 21,829.20, 32,748.60 and 7,035.60 is: 10,554.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,829.20 : 32,748.60 = 7,035.60 : x
  2. Step 2: Convert to fraction form
    21,829.20/32,748.60 = 7,035.60/x
  3. Step 3: Cross multiply
    21,829.20x = 32,748.60 × 7,035.60
  4. Step 4: Simplify right side
    21,829.20x = 230,406,050.16
  5. Step 5: Solve for x
    x = 230,406,050.16/21,829.20
  6. Step 6: Final answer
    x = 10,554.95

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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.