Home / 23,014.40-34,435.20-20,940.80

Finding the Fourth Proportional to 23,014.40, 34,435.20 and 20,940.80

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Solution

The fourth proportional to 23,014.40, 34,435.20 and 20,940.80 is: 31,332.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,014.40 : 34,435.20 = 20,940.80 : x
  2. Step 2: Convert to fraction form
    23,014.40/34,435.20 = 20,940.80/x
  3. Step 3: Cross multiply
    23,014.40x = 34,435.20 × 20,940.80
  4. Step 4: Simplify right side
    23,014.40x = 721,100,636.16
  5. Step 5: Solve for x
    x = 721,100,636.16/23,014.40
  6. Step 6: Final answer
    x = 31,332.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.