Home / 26,431.96-39,620.76-11,638.12

Finding the Fourth Proportional to 26,431.96, 39,620.76 and 11,638.12

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Solution

The fourth proportional to 26,431.96, 39,620.76 and 11,638.12 is: 17,445.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,431.96 : 39,620.76 = 11,638.12 : x
  2. Step 2: Convert to fraction form
    26,431.96/39,620.76 = 11,638.12/x
  3. Step 3: Cross multiply
    26,431.96x = 39,620.76 × 11,638.12
  4. Step 4: Simplify right side
    26,431.96x = 461,111,159.37
  5. Step 5: Solve for x
    x = 461,111,159.37/26,431.96
  6. Step 6: Final answer
    x = 17,445.21

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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.