Home / 21,509.21-32,265.81-8,362.58

Finding the Fourth Proportional to 21,509.21, 32,265.81 and 8,362.58

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Solution

The fourth proportional to 21,509.21, 32,265.81 and 8,362.58 is: 12,544.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,509.21 : 32,265.81 = 8,362.58 : x
  2. Step 2: Convert to fraction form
    21,509.21/32,265.81 = 8,362.58/x
  3. Step 3: Cross multiply
    21,509.21x = 32,265.81 × 8,362.58
  4. Step 4: Simplify right side
    21,509.21x = 269,825,256.06
  5. Step 5: Solve for x
    x = 269,825,256.06/21,509.21
  6. Step 6: Final answer
    x = 12,544.64

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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.