Home / 21,911.04-32,869.80-11,523.60

Finding the Fourth Proportional to 21,911.04, 32,869.80 and 11,523.60

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Solution

The fourth proportional to 21,911.04, 32,869.80 and 11,523.60 is: 17,287.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,911.04 : 32,869.80 = 11,523.60 : x
  2. Step 2: Convert to fraction form
    21,911.04/32,869.80 = 11,523.60/x
  3. Step 3: Cross multiply
    21,911.04x = 32,869.80 × 11,523.60
  4. Step 4: Simplify right side
    21,911.04x = 378,778,427.28
  5. Step 5: Solve for x
    x = 378,778,427.28/21,911.04
  6. Step 6: Final answer
    x = 17,287.10

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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.