Home / 43,405.18-65,112.38-13,816.09

Finding the Fourth Proportional to 43,405.18, 65,112.38 and 13,816.09

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Solution

The fourth proportional to 43,405.18, 65,112.38 and 13,816.09 is: 20,725.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,405.18 : 65,112.38 = 13,816.09 : x
  2. Step 2: Convert to fraction form
    43,405.18/65,112.38 = 13,816.09/x
  3. Step 3: Cross multiply
    43,405.18x = 65,112.38 × 13,816.09
  4. Step 4: Simplify right side
    43,405.18x = 899,598,502.19
  5. Step 5: Solve for x
    x = 899,598,502.19/43,405.18
  6. Step 6: Final answer
    x = 20,725.60

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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.