Home / 43,790.16-65,685.27-12,200.31

Finding the Fourth Proportional to 43,790.16, 65,685.27 and 12,200.31

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Solution

The fourth proportional to 43,790.16, 65,685.27 and 12,200.31 is: 18,300.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,790.16 : 65,685.27 = 12,200.31 : x
  2. Step 2: Convert to fraction form
    43,790.16/65,685.27 = 12,200.31/x
  3. Step 3: Cross multiply
    43,790.16x = 65,685.27 × 12,200.31
  4. Step 4: Simplify right side
    43,790.16x = 801,380,656.43
  5. Step 5: Solve for x
    x = 801,380,656.43/43,790.16
  6. Step 6: Final answer
    x = 18,300.47

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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.