Home / 26,147.64-39,156.87-13,678.15

Finding the Fourth Proportional to 26,147.64, 39,156.87 and 13,678.15

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Solution

The fourth proportional to 26,147.64, 39,156.87 and 13,678.15 is: 20,483.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,147.64 : 39,156.87 = 13,678.15 : x
  2. Step 2: Convert to fraction form
    26,147.64/39,156.87 = 13,678.15/x
  3. Step 3: Cross multiply
    26,147.64x = 39,156.87 × 13,678.15
  4. Step 4: Simplify right side
    26,147.64x = 535,593,408.67
  5. Step 5: Solve for x
    x = 535,593,408.67/26,147.64
  6. Step 6: Final answer
    x = 20,483.44

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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.