Home / 27,208.60-37,556.04-15,881.20

Finding the Fourth Proportional to 27,208.60, 37,556.04 and 15,881.20

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Solution

The fourth proportional to 27,208.60, 37,556.04 and 15,881.20 is: 21,920.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,208.60 : 37,556.04 = 15,881.20 : x
  2. Step 2: Convert to fraction form
    27,208.60/37,556.04 = 15,881.20/x
  3. Step 3: Cross multiply
    27,208.60x = 37,556.04 × 15,881.20
  4. Step 4: Simplify right side
    27,208.60x = 596,434,982.45
  5. Step 5: Solve for x
    x = 596,434,982.45/27,208.60
  6. Step 6: Final answer
    x = 21,920.83

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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.