Home / 23,086.80-34,630.20-20,170.80

Finding the Fourth Proportional to 23,086.80, 34,630.20 and 20,170.80

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Solution

The fourth proportional to 23,086.80, 34,630.20 and 20,170.80 is: 30,256.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,086.80 : 34,630.20 = 20,170.80 : x
  2. Step 2: Convert to fraction form
    23,086.80/34,630.20 = 20,170.80/x
  3. Step 3: Cross multiply
    23,086.80x = 34,630.20 × 20,170.80
  4. Step 4: Simplify right side
    23,086.80x = 698,518,838.16
  5. Step 5: Solve for x
    x = 698,518,838.16/23,086.80
  6. Step 6: Final answer
    x = 30,256.20

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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.