Home / 27,107.87-37,408.64-15,172.31

Finding the Fourth Proportional to 27,107.87, 37,408.64 and 15,172.31

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Solution

The fourth proportional to 27,107.87, 37,408.64 and 15,172.31 is: 20,937.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,107.87 : 37,408.64 = 15,172.31 : x
  2. Step 2: Convert to fraction form
    27,107.87/37,408.64 = 15,172.31/x
  3. Step 3: Cross multiply
    27,107.87x = 37,408.64 × 15,172.31
  4. Step 4: Simplify right side
    27,107.87x = 567,575,500.42
  5. Step 5: Solve for x
    x = 567,575,500.42/27,107.87
  6. Step 6: Final answer
    x = 20,937.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.