Home / 26,438.26-39,636.36-13,101.88

Finding the Fourth Proportional to 26,438.26, 39,636.36 and 13,101.88

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Solution

The fourth proportional to 26,438.26, 39,636.36 and 13,101.88 is: 19,642.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,438.26 : 39,636.36 = 13,101.88 : x
  2. Step 2: Convert to fraction form
    26,438.26/39,636.36 = 13,101.88/x
  3. Step 3: Cross multiply
    26,438.26x = 39,636.36 × 13,101.88
  4. Step 4: Simplify right side
    26,438.26x = 519,310,832.36
  5. Step 5: Solve for x
    x = 519,310,832.36/26,438.26
  6. Step 6: Final answer
    x = 19,642.40

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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.