Home / 13,394.79-20,090.48-3,534.81

Finding the Fourth Proportional to 13,394.79, 20,090.48 and 3,534.81

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Solution

The fourth proportional to 13,394.79, 20,090.48 and 3,534.81 is: 5,301.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,394.79 : 20,090.48 = 3,534.81 : x
  2. Step 2: Convert to fraction form
    13,394.79/20,090.48 = 3,534.81/x
  3. Step 3: Cross multiply
    13,394.79x = 20,090.48 × 3,534.81
  4. Step 4: Simplify right side
    13,394.79x = 71,016,011.93
  5. Step 5: Solve for x
    x = 71,016,011.93/13,394.79
  6. Step 6: Final answer
    x = 5,301.76

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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.