Home / 43,490.48-65,231.60-13,900.37

Finding the Fourth Proportional to 43,490.48, 65,231.60 and 13,900.37

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Solution

The fourth proportional to 43,490.48, 65,231.60 and 13,900.37 is: 20,849.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,490.48 : 65,231.60 = 13,900.37 : x
  2. Step 2: Convert to fraction form
    43,490.48/65,231.60 = 13,900.37/x
  3. Step 3: Cross multiply
    43,490.48x = 65,231.60 × 13,900.37
  4. Step 4: Simplify right side
    43,490.48x = 906,742,980.03
  5. Step 5: Solve for x
    x = 906,742,980.03/43,490.48
  6. Step 6: Final answer
    x = 20,849.23

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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.