Home / 27,129.60-37,440.60-15,192.48

Finding the Fourth Proportional to 27,129.60, 37,440.60 and 15,192.48

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Solution

The fourth proportional to 27,129.60, 37,440.60 and 15,192.48 is: 20,966.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,129.60 : 37,440.60 = 15,192.48 : x
  2. Step 2: Convert to fraction form
    27,129.60/37,440.60 = 15,192.48/x
  3. Step 3: Cross multiply
    27,129.60x = 37,440.60 × 15,192.48
  4. Step 4: Simplify right side
    27,129.60x = 568,815,566.69
  5. Step 5: Solve for x
    x = 568,815,566.69/27,129.60
  6. Step 6: Final answer
    x = 20,966.60

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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.