Home / 27,129.60-40,659.36-21,867.04

Finding the Fourth Proportional to 27,129.60, 40,659.36 and 21,867.04

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Solution

The fourth proportional to 27,129.60, 40,659.36 and 21,867.04 is: 32,772.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,129.60 : 40,659.36 = 21,867.04 : x
  2. Step 2: Convert to fraction form
    27,129.60/40,659.36 = 21,867.04/x
  3. Step 3: Cross multiply
    27,129.60x = 40,659.36 × 21,867.04
  4. Step 4: Simplify right side
    27,129.60x = 889,099,851.49
  5. Step 5: Solve for x
    x = 889,099,851.49/27,129.60
  6. Step 6: Final answer
    x = 32,772.32

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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.