Home / 26,446.40-39,637.20-11,639.60

Finding the Fourth Proportional to 26,446.40, 39,637.20 and 11,639.60

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Solution

The fourth proportional to 26,446.40, 39,637.20 and 11,639.60 is: 17,445.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,446.40 : 39,637.20 = 11,639.60 : x
  2. Step 2: Convert to fraction form
    26,446.40/39,637.20 = 11,639.60/x
  3. Step 3: Cross multiply
    26,446.40x = 39,637.20 × 11,639.60
  4. Step 4: Simplify right side
    26,446.40x = 461,361,153.12
  5. Step 5: Solve for x
    x = 461,361,153.12/26,446.40
  6. Step 6: Final answer
    x = 17,445.14

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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.