Home / 43,389.60-65,091.33-13,396.79

Finding the Fourth Proportional to 43,389.60, 65,091.33 and 13,396.79

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Solution

The fourth proportional to 43,389.60, 65,091.33 and 13,396.79 is: 20,097.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,389.60 : 65,091.33 = 13,396.79 : x
  2. Step 2: Convert to fraction form
    43,389.60/65,091.33 = 13,396.79/x
  3. Step 3: Cross multiply
    43,389.60x = 65,091.33 × 13,396.79
  4. Step 4: Simplify right side
    43,389.60x = 872,014,553.37
  5. Step 5: Solve for x
    x = 872,014,553.37/43,389.60
  6. Step 6: Final answer
    x = 20,097.32

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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.