Home / 28,777.20-43,149.42-13,982.16

Finding the Fourth Proportional to 28,777.20, 43,149.42 and 13,982.16

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Solution

The fourth proportional to 28,777.20, 43,149.42 and 13,982.16 is: 20,965.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,777.20 : 43,149.42 = 13,982.16 : x
  2. Step 2: Convert to fraction form
    28,777.20/43,149.42 = 13,982.16/x
  3. Step 3: Cross multiply
    28,777.20x = 43,149.42 × 13,982.16
  4. Step 4: Simplify right side
    28,777.20x = 603,322,094.35
  5. Step 5: Solve for x
    x = 603,322,094.35/28,777.20
  6. Step 6: Final answer
    x = 20,965.28

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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.