Home / 18,281.04-27,465.28-11,720

Finding the Fourth Proportional to 18,281.04, 27,465.28 and 11,720

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Solution

The fourth proportional to 18,281.04, 27,465.28 and 11,720 is: 17,608.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,281.04 : 27,465.28 = 11,720 : x
  2. Step 2: Convert to fraction form
    18,281.04/27,465.28 = 11,720/x
  3. Step 3: Cross multiply
    18,281.04x = 27,465.28 × 11,720
  4. Step 4: Simplify right side
    18,281.04x = 321,893,081.60
  5. Step 5: Solve for x
    x = 321,893,081.60/18,281.04
  6. Step 6: Final answer
    x = 17,608.03

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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.