Home / 43,543.44-65,320.56-12,381.12

Finding the Fourth Proportional to 43,543.44, 65,320.56 and 12,381.12

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Solution

The fourth proportional to 43,543.44, 65,320.56 and 12,381.12 is: 18,573.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,543.44 : 65,320.56 = 12,381.12 : x
  2. Step 2: Convert to fraction form
    43,543.44/65,320.56 = 12,381.12/x
  3. Step 3: Cross multiply
    43,543.44x = 65,320.56 × 12,381.12
  4. Step 4: Simplify right side
    43,543.44x = 808,741,691.83
  5. Step 5: Solve for x
    x = 808,741,691.83/43,543.44
  6. Step 6: Final answer
    x = 18,573.22

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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.