Home / 14,270.80-21,406.20-3,740.80

Finding the Fourth Proportional to 14,270.80, 21,406.20 and 3,740.80

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Solution

The fourth proportional to 14,270.80, 21,406.20 and 3,740.80 is: 5,611.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,270.80 : 21,406.20 = 3,740.80 : x
  2. Step 2: Convert to fraction form
    14,270.80/21,406.20 = 3,740.80/x
  3. Step 3: Cross multiply
    14,270.80x = 21,406.20 × 3,740.80
  4. Step 4: Simplify right side
    14,270.80x = 80,076,312.96
  5. Step 5: Solve for x
    x = 80,076,312.96/14,270.80
  6. Step 6: Final answer
    x = 5,611.20

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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.