Home / 27,138.18-37,449.60-15,200.91

Finding the Fourth Proportional to 27,138.18, 37,449.60 and 15,200.91

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Solution

The fourth proportional to 27,138.18, 37,449.60 and 15,200.91 is: 20,976.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,138.18 : 37,449.60 = 15,200.91 : x
  2. Step 2: Convert to fraction form
    27,138.18/37,449.60 = 15,200.91/x
  3. Step 3: Cross multiply
    27,138.18x = 37,449.60 × 15,200.91
  4. Step 4: Simplify right side
    27,138.18x = 569,267,735.88
  5. Step 5: Solve for x
    x = 569,267,735.88/27,138.18
  6. Step 6: Final answer
    x = 20,976.64

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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.