Home / 23,229.21-34,668.27-20,987.20

Finding the Fourth Proportional to 23,229.21, 34,668.27 and 20,987.20

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Solution

The fourth proportional to 23,229.21, 34,668.27 and 20,987.20 is: 31,322.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,229.21 : 34,668.27 = 20,987.20 : x
  2. Step 2: Convert to fraction form
    23,229.21/34,668.27 = 20,987.20/x
  3. Step 3: Cross multiply
    23,229.21x = 34,668.27 × 20,987.20
  4. Step 4: Simplify right side
    23,229.21x = 727,589,916.14
  5. Step 5: Solve for x
    x = 727,589,916.14/23,229.21
  6. Step 6: Final answer
    x = 31,322.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.