Home / 21,404.80-32,116.28-11,532.60

Finding the Fourth Proportional to 21,404.80, 32,116.28 and 11,532.60

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Solution

The fourth proportional to 21,404.80, 32,116.28 and 11,532.60 is: 17,303.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,404.80 : 32,116.28 = 11,532.60 : x
  2. Step 2: Convert to fraction form
    21,404.80/32,116.28 = 11,532.60/x
  3. Step 3: Cross multiply
    21,404.80x = 32,116.28 × 11,532.60
  4. Step 4: Simplify right side
    21,404.80x = 370,384,210.73
  5. Step 5: Solve for x
    x = 370,384,210.73/21,404.80
  6. Step 6: Final answer
    x = 17,303.79

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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.