Home / 26,558.28-39,862.04-13,419.90

Finding the Fourth Proportional to 26,558.28, 39,862.04 and 13,419.90

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Solution

The fourth proportional to 26,558.28, 39,862.04 and 13,419.90 is: 20,142.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,558.28 : 39,862.04 = 13,419.90 : x
  2. Step 2: Convert to fraction form
    26,558.28/39,862.04 = 13,419.90/x
  3. Step 3: Cross multiply
    26,558.28x = 39,862.04 × 13,419.90
  4. Step 4: Simplify right side
    26,558.28x = 534,944,523.50
  5. Step 5: Solve for x
    x = 534,944,523.50/26,558.28
  6. Step 6: Final answer
    x = 20,142.29

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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.