Home / 27,080.20-37,370.42-15,143.40

Finding the Fourth Proportional to 27,080.20, 37,370.42 and 15,143.40

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Solution

The fourth proportional to 27,080.20, 37,370.42 and 15,143.40 is: 20,897.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,080.20 : 37,370.42 = 15,143.40 : x
  2. Step 2: Convert to fraction form
    27,080.20/37,370.42 = 15,143.40/x
  3. Step 3: Cross multiply
    27,080.20x = 37,370.42 × 15,143.40
  4. Step 4: Simplify right side
    27,080.20x = 565,915,218.23
  5. Step 5: Solve for x
    x = 565,915,218.23/27,080.20
  6. Step 6: Final answer
    x = 20,897.75

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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.