Home / 21,845.64-32,719.14-17,909.04

Finding the Fourth Proportional to 21,845.64, 32,719.14 and 17,909.04

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Solution

The fourth proportional to 21,845.64, 32,719.14 and 17,909.04 is: 26,823.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,845.64 : 32,719.14 = 17,909.04 : x
  2. Step 2: Convert to fraction form
    21,845.64/32,719.14 = 17,909.04/x
  3. Step 3: Cross multiply
    21,845.64x = 32,719.14 × 17,909.04
  4. Step 4: Simplify right side
    21,845.64x = 585,968,387.03
  5. Step 5: Solve for x
    x = 585,968,387.03/21,845.64
  6. Step 6: Final answer
    x = 26,823.13

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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.