Home / 27,081.20-37,371.80-15,144.40

Finding the Fourth Proportional to 27,081.20, 37,371.80 and 15,144.40

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Solution

The fourth proportional to 27,081.20, 37,371.80 and 15,144.40 is: 20,899.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,081.20 : 37,371.80 = 15,144.40 : x
  2. Step 2: Convert to fraction form
    27,081.20/37,371.80 = 15,144.40/x
  3. Step 3: Cross multiply
    27,081.20x = 37,371.80 × 15,144.40
  4. Step 4: Simplify right side
    27,081.20x = 565,973,487.92
  5. Step 5: Solve for x
    x = 565,973,487.92/27,081.20
  6. Step 6: Final answer
    x = 20,899.13

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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.