Home / 27,151.26-37,520.21-20,425.21

Finding the Fourth Proportional to 27,151.26, 37,520.21 and 20,425.21

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Solution

The fourth proportional to 27,151.26, 37,520.21 and 20,425.21 is: 28,225.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,151.26 : 37,520.21 = 20,425.21 : x
  2. Step 2: Convert to fraction form
    27,151.26/37,520.21 = 20,425.21/x
  3. Step 3: Cross multiply
    27,151.26x = 37,520.21 × 20,425.21
  4. Step 4: Simplify right side
    27,151.26x = 766,358,207.55
  5. Step 5: Solve for x
    x = 766,358,207.55/27,151.26
  6. Step 6: Final answer
    x = 28,225.51

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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.