Home / 23,119.71-34,512.29-20,317.20

Finding the Fourth Proportional to 23,119.71, 34,512.29 and 20,317.20

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Solution

The fourth proportional to 23,119.71, 34,512.29 and 20,317.20 is: 30,328.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,119.71 : 34,512.29 = 20,317.20 : x
  2. Step 2: Convert to fraction form
    23,119.71/34,512.29 = 20,317.20/x
  3. Step 3: Cross multiply
    23,119.71x = 34,512.29 × 20,317.20
  4. Step 4: Simplify right side
    23,119.71x = 701,192,996.80
  5. Step 5: Solve for x
    x = 701,192,996.80/23,119.71
  6. Step 6: Final answer
    x = 30,328.80

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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.