Home / 43,399.18-65,099.31-13,816.90

Finding the Fourth Proportional to 43,399.18, 65,099.31 and 13,816.90

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Solution

The fourth proportional to 43,399.18, 65,099.31 and 13,816.90 is: 20,725.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,399.18 : 65,099.31 = 13,816.90 : x
  2. Step 2: Convert to fraction form
    43,399.18/65,099.31 = 13,816.90/x
  3. Step 3: Cross multiply
    43,399.18x = 65,099.31 × 13,816.90
  4. Step 4: Simplify right side
    43,399.18x = 899,470,656.34
  5. Step 5: Solve for x
    x = 899,470,656.34/43,399.18
  6. Step 6: Final answer
    x = 20,725.52

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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.