Home / 27,911.68-38,519.04-15,337.60

Finding the Fourth Proportional to 27,911.68, 38,519.04 and 15,337.60

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Solution

The fourth proportional to 27,911.68, 38,519.04 and 15,337.60 is: 21,166.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,911.68 : 38,519.04 = 15,337.60 : x
  2. Step 2: Convert to fraction form
    27,911.68/38,519.04 = 15,337.60/x
  3. Step 3: Cross multiply
    27,911.68x = 38,519.04 × 15,337.60
  4. Step 4: Simplify right side
    27,911.68x = 590,789,627.90
  5. Step 5: Solve for x
    x = 590,789,627.90/27,911.68
  6. Step 6: Final answer
    x = 21,166.39

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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.