Home / 26,388.28-39,600.78-11,607.40

Finding the Fourth Proportional to 26,388.28, 39,600.78 and 11,607.40

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Solution

The fourth proportional to 26,388.28, 39,600.78 and 11,607.40 is: 17,419.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,388.28 : 39,600.78 = 11,607.40 : x
  2. Step 2: Convert to fraction form
    26,388.28/39,600.78 = 11,607.40/x
  3. Step 3: Cross multiply
    26,388.28x = 39,600.78 × 11,607.40
  4. Step 4: Simplify right side
    26,388.28x = 459,662,093.77
  5. Step 5: Solve for x
    x = 459,662,093.77/26,388.28
  6. Step 6: Final answer
    x = 17,419.18

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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.