Home / 20,283.04-27,987.60-11,902.24

Finding the Fourth Proportional to 20,283.04, 27,987.60 and 11,902.24

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Solution

The fourth proportional to 20,283.04, 27,987.60 and 11,902.24 is: 16,423.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,283.04 : 27,987.60 = 11,902.24 : x
  2. Step 2: Convert to fraction form
    20,283.04/27,987.60 = 11,902.24/x
  3. Step 3: Cross multiply
    20,283.04x = 27,987.60 × 11,902.24
  4. Step 4: Simplify right side
    20,283.04x = 333,115,132.22
  5. Step 5: Solve for x
    x = 333,115,132.22/20,283.04
  6. Step 6: Final answer
    x = 16,423.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.