Home / 21,473.76-32,181.60-9,619.68

Finding the Fourth Proportional to 21,473.76, 32,181.60 and 9,619.68

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Solution

The fourth proportional to 21,473.76, 32,181.60 and 9,619.68 is: 14,416.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,473.76 : 32,181.60 = 9,619.68 : x
  2. Step 2: Convert to fraction form
    21,473.76/32,181.60 = 9,619.68/x
  3. Step 3: Cross multiply
    21,473.76x = 32,181.60 × 9,619.68
  4. Step 4: Simplify right side
    21,473.76x = 309,576,693.89
  5. Step 5: Solve for x
    x = 309,576,693.89/21,473.76
  6. Step 6: Final answer
    x = 14,416.51

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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.